Jeudi 21 mai 2026
48 CVE
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CVE-2026-8428 8.8 Élevée
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below emits a CSRF token in the local_available_update.php view ($token->output('do_update')) but the corresponding do_update() method in concrete/controllers/single_page/dashboard/system/update/update.php never calls $this->token->validate('do_update'). The form is rendered as a POST form, meaning the token reaches the browser, but because the controller discards it without verification, an attacker can craft a cross-site POST that triggers a core CMS update to an attacker-specified version string. In order to be vulnerable, theictim must be passing canUpgrade()anda valid update version must be present under DIR_CORE_UPDATES. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.
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CVE-2026-8426 8.8 Élevée
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/update/prepare_remote_upgrade/<remoteMPID>. An attacker who controls the remote package returned for a known marketplace item ID can overwrite the package PHP on disk and force its upgrade() method to execute in a single browser navigation. This results in remote code execution as the web server user. In order to be vulnerable, the victim must be passing canInstallPackages, victim site must be connected to the Concrete marketplace; and the attacker controls the package returned for a marketplace item ID already installed on the victim site. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.
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CVE-2026-8421 8.8 Élevée
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below contains a CSRF vulnerability in the install_package() method of concrete/controllers/single_page/dashboard/extend/install.php. An attacker who can cause an authenticated administrator to visit a crafted page, and who has placed or caused a package to be present under DIR_PACKAGES/<handle>/, can force the installation of that package without any CSRF protection. Package installation executes the package controller's install() method as the web server user, enabling remote code execution. In order to be vulnerable, the victim must be passing canInstallPackages. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.
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CVE-2026-8417 8.8 Élevée
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/update/do_update/<pkgHandle>. The do_update() method in concrete/controllers/single_page/dashboard/extend/update.php checks only canInstallPackages() before executing upgradeCoreData() and upgrade() on the named package's controller. Because the endpoint is a state-changing GET route with no token enforcement, an attacker can force an authenticated administrator to trigger a package upgrade via a single cross-site navigation.In order to be vulnerable, the victim must be passing canInstallPackages() and and a target package must already be already installed. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.
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CVE-2026-8350 8.8 Élevée
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below is vulnerable to missing authorization in the bulk_user_assignment.php which can lead to privilege escalation to Administrative Group. Any authenticated user with access to the bulk user assignment dashboard page can add any user email to any group and can remove legitimate admins. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks Vincent55 for reporting.
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CVE-2026-8197 4.8 Moyenne
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below is vulnerable to Stored XSS via OAuth integration name. The OAuth authorize template renders the integration name (admin-controlled) through Concrete's t() translation helper as a sprintf-style format. The <strong>...</strong> wrap is built by PHP string interpolation before t() runs, so the integration name lands in the translated output as raw HTML. A rogue admin could potentially snoop on login submissions.The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.3 with vector CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N Thanks Yonatan Drori (Tenzai) for reporting.
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CVE-2026-8140 6.5 Moyenne
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below does not validate a CSRF token before processing requests to /dashboard/extend/install/download/<remoteId>. The download() method in concrete/controllers/single_page/dashboard/extend/install.php checks only the canInstallPackages() permission before fetching a remote marketplace package and writing it to the server's DIR_PACKAGES directory. Because the endpoint is a state-changing GET route with no token enforcement, an attacker who can cause an authenticated administrator to visit a crafted page can force an arbitrary marketplace package to be downloaded. In order to be vulnerable, the victim must be passing canInstallPackages() and the site must be connected to the Concrete marketplace. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 7.5 with vector CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N. Thanks https://github.com/maru1009 for reporting.
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CVE-2026-8135 7.2 Élevée
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below is vulnerable to Remote Code Execution due to insecure deserialization occurring in the ExpressEntryList block controller. An rogue administrator with privileges to add blocks to an area can bypass the intended protection mechanism (_fromCIF === true), which normally restricts malicious inputs over form POST requests, by leveraging the REST API functionality. Because the REST API parses requests using json_decode(), the string "true" is evaluated as a strict PHP Boolean(true). This bypass allows the attacker to inject a malicious serialized payload into the block's filterFields database column. The payload will subsequently be executed when the block's data is viewed or edited by an administrator leading to complete server takeover (RCE).The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 8.9 with a vector of CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H. Thanks Nguyễn Văn Thiện https://github.com/Thien225409 for reporting
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CVE-2026-8134 7.2 Élevée
Concrete CMS · Concretecms concrete cms
Concrete CMS 9.5.0 and below fails to sanitize path traversal sequences in the ptComposerFormLayoutSetControlCustomTemplate field when saving page type composer form layouts. An authenticated rogue administrator with composer form editing rights can exploit this to include arbitrary readable files on the server. Combined with the file uploader's extension-only validation (which permits PHP code in files saved with image extensions like .png), this can result in authenticated remote code execution. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 9.4 with vector CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H Thanks Yonatan Drori (Tenzai) for reporting.
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CVE-2026-48249 5.9 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 disables TLS certificate verification in rm/incs/mobile_login.inc.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests issued during the mobile (RouteMate) login flow. An attacker positioned on the network path between the server and the remote endpoint can present a forged certificate to intercept, monitor, or modify the request and response, including any API keys or session-bearing data in transit.
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CVE-2026-48248 5.9 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 disables TLS certificate verification in incs/login.inc.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests issued during the login/authentication flow. An attacker positioned on the network path between the server and the remote endpoint can present a forged certificate to intercept, monitor, or modify the request and response, including any API keys or session-bearing data in transit.
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CVE-2026-48247 5.9 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 disables TLS certificate verification in incs/functions.inc.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests for general-purpose outbound HTTPS requests issued by the shared helper functions. An attacker positioned on the network path between the server and the remote endpoint can present a forged certificate to intercept, monitor, or modify the request and response, including any API keys or session-bearing data in transit.
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CVE-2026-48246 5.9 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 disables TLS certificate verification in ajax/reports.php by setting CURLOPT_SSL_VERIFYPEER to false (and not setting CURLOPT_SSL_VERIFYHOST) when issuing outbound HTTPS requests for Google Maps Directions API lookups during incident report generation. An attacker positioned on the network path between the server and the remote endpoint can present a forged certificate to intercept, monitor, or modify the request and response, including any API keys or session-bearing data in transit.
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CVE-2026-48245 5.3 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 embeds a hardcoded Google Maps API key in tables.php that is committed to the public source repository. The key can be extracted by anyone with read access to the source and used to make Google Maps Platform requests billed against the original owner's Google Cloud project.
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CVE-2026-48244 5.3 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 embeds a hardcoded Google Maps API key in settings.inc.php that is committed to the public source repository. The key can be extracted by anyone with read access to the source and used to make Google Maps Platform requests billed against the original owner's Google Cloud project.
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CVE-2026-48243 5.3 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 embeds a hardcoded WhitePages reverse-phone API key in wp1.php that is committed to the public source repository. Any actor with read access to the source tree can extract the key and use it to make third-party API calls billed to or rate-limited against the original owner's WhitePages account.
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CVE-2026-48242 8.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains hardcoded MySQL database connection credentials (host, username, password, database name) in import_mdb.php. The credentials are embedded in source code committed to the public repository, allowing any reader of the source to obtain valid configuration values that may match deployed installations.
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CVE-2026-48241 8.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains hardcoded MySQL database credentials in loader.php (a public-facing database utility) that are committed to the source repository. Any actor with access to the public source tree (or an unauthenticated attacker with read access to the file on a deployed installation) can read the username, password, and database name and use them to connect to the database if it is reachable from their network.
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CVE-2026-48240 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in ajax/statistics.php where the tick_id and f_tick_id POST parameters are concatenated into WHERE clauses of SELECT statements in the statistics rollup queries without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48239 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in ajax/reports.php where the tick_id POST parameter is concatenated into the WHERE clause of SELECT statements in the incidents summary report without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48238 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in ajax/mobile_main.php where the id GET parameter is concatenated into the WHERE clause of a SELECT statement used as a ticket-existence sanity check without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48237 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in message.php where the frm_ticket_id and frm_resp_id POST parameters are concatenated into WHERE clauses of SELECT/UPDATE statements without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48236 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in db_loader.php where the multiple POST parameters (ticketsdb, ticketshost, ticketsuser, ticketspassword) are concatenated into mysqli connection arguments and dynamic SQL operating against an attacker-controlled database without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48235 8.2 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in incs/remotes.inc.php where latitude, longitude, callsign, mph, altitude, and timestamp values parsed from external GPS tracking service XML/JSON responses (InstaMapper and Google Latitude integration) are concatenated into UPDATE and INSERT statements without sanitization. An attacker able to compromise or impersonate the remote GPS tracker endpoint can inject SQL to manipulate the responder location, tracks, and assignment tables.
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CVE-2026-48234 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in portal/ajax/list_requests.php where the sort and dir GET parameters are concatenated into the ORDER BY clause of a SELECT statement without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48233 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in ajax/sit_incidents.php where the offset GET parameter is concatenated into the LIMIT clause of a SELECT statement without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48232 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in ajax/fullsit_incidents.php where the offset GET parameter is concatenated into the LIMIT clause of a SELECT statement without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48231 7.1 Élevée
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a SQL injection vulnerability in tables.php where the multiple POST parameters (tablename, indexname, sortby) are concatenated into table/column identifiers in dynamically constructed SELECT/UPDATE/DELETE statements without sanitization. Authenticated attackers can craft requests that alter query semantics to read, modify, or destroy database contents.
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CVE-2026-48230 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ticketsmdb_import.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the multiple POST parameters (mdbhost, mdbdb, mdbuser, mdbpassword, mdbprefix, ticketshost, ticketsdb, ticketsuser, ticketspassword, ticketsprefix) directly into HTML form hidden input value attributes. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48229 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in routes_i.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the ticket_id GET parameter directly into HTML form hidden input value attributes. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48228 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in patient_w.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the id and ticket_id GET parameters directly into an HTML form action URL. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48227 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in patient.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the id and ticket_id GET parameters directly into an HTML form action URL. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48226 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in os_watch.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the ref and mode_orig POST parameters directly into HTML form hidden input value attributes. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48225 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in landb.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the _type POST parameter directly into an HTML form hidden input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48224 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics214.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_add_str POST parameter directly into an HTML form hidden input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48223 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics213rr.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_add_str POST parameter directly into an HTML form hidden input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48222 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics213.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_add_str POST parameter directly into an HTML form hidden input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48221 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics205a.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_add_str POST parameter directly into an HTML form hidden input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48220 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics205.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_add_str POST parameter directly into an HTML form hidden input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48219 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics202.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_add_str POST parameter directly into an HTML form hidden input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48218 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in icons/buttons/landb.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_name and frm_id POST parameters directly into rendered HTML content and inline JavaScript. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48217 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in delete_module.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the multiple POST parameters (module_choice, flag, confirmation) directly into rendered HTML content and form action attributes. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48216 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in db_loader.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the multiple POST parameters (ticketshost, ticketsdb, ticketsuser, ticketspassword, ticketsprefix, db_schema) directly into HTML form input value attributes. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48215 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in circle.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_id POST parameter directly into an HTML form input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48214 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in add_nm.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the ticket_id POST parameter directly into an HTML form input value attribute and an inline JavaScript string literal. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-48213 5.4 Moyenne
Open ISES Tickets
Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in add.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the ticket_id POST parameter directly into an HTML form input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.
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CVE-2026-6279 9.8 Critique
themefusion Avada (Fusion) Builder
The Avada Builder (fusion-builder) plugin for WordPress is vulnerable to Unauthenticated Remote Code Execution via PHP Function Injection in versions up to and including 3.15.2. This is due to the `wp_conditional_tags` case in `Fusion_Builder_Conditional_Render_Helper::get_value()` passing attacker-controlled values from a base64-decoded JSON blob directly to `call_user_func()` without any allowlist validation. This is exploitable by unauthenticated attackers through the `fusion_get_widget_markup` AJAX endpoint, which is registered for non-privileged (unauthenticated) users via `wp_ajax_nopriv_fusion_get_widget_markup`. The endpoint is protected only by a nonce (`fusion_load_nonce`), but this nonce is generated for user ID 0 and is deterministically exposed in the JavaScript output of any public-facing page containing a Post Cards (`[fusion_post_cards]`) or Table of Contents (`[fusion_table_of_contents]`) element. This makes it possible for unauthenticated attackers to execute arbitrary code on affected sites.
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CVE-2026-39960 5.4 Moyenne
mantisbt
Mantis Bug Tracker (MantisBT) is an open source issue tracker. Versions 2.28.1 and below contain flawed logic that causes improper escaping of a textarea custom field's contents in the Update Issue page, (bug_update_page.php) allowing an attacker to inject HTML and, if CSP settings permit, execute arbitrary JavaScript when the page is loaded. This facilitates session theft, leading to admin account takeover, full project data access. In order to exploit this issue, a textarea-type custom field must be configured for the project, the attack must be carried out by an authenticated user with bug report permission (low privilege). This can affect any user viewing the bug edit form, including administrators. The issue has been fixed in version 2.28.2. If users cannot immediately upgrade, they can work around the issue by using the default Content-Security Policy, which blocks script execution.