Veille CVE
CVE-2026-16778
6.4 MoyenneDescription
The Live Composer – Free WordPress Website Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'dslc_module_downloads_output' Shortcode Content in all versions up to, and including, 2.1.21 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The save-time wp_kses_post check is bypassed because the payload is stored as a serialized string containing no HTML tags for kses to tokenize, and the shortcode callback re-emits attacker-controlled values — including view_all_link (href attribute), main_heading_title (h2 body), button_text (anchor body), and button_inline_svg (anchor body) — without any escaping at render time.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 6.4 Moyenne | security@wordfence.com | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N |
Faiblesses (CWE)
Références
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/downloads/module.php#L4978
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/downloads/module.php#L5219
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/downloads/module.php#L5225
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/downloads/module.php#L5502
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/downloads/module.php#L5508
- https://plugins.trac.wordpress.org/browser/live-composer-page-builder/tags/2.1.18/modules/downloads/module.php#L5685
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3705127%40live-composer-page-builder&new=3705127%40live-composer-page-builder
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1d072660-515c-4fd9-903b-815447786e03?source=cve