Veille CVE
CVE-2026-110290
6.4 MoyenneDescription
The WebberZone Top 10 — Popular Posts plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'other_attributes (parsed to inject instance_id) + undeclared is_widget' parameter in all versions up to, and including, 4.5.2 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 exploit requires setting the undeclared is_widget flag to '1' via block JSON, which activates the vulnerable code path that concatenates the attacker-controlled instance_id value into an unescaped HTML class attribute.
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/top-10/tags/4.5.2/includes/frontend/blocks/class-blocks.php#L128
- https://plugins.trac.wordpress.org/browser/top-10/tags/4.5.2/includes/frontend/blocks/class-blocks.php#L142
- https://plugins.trac.wordpress.org/browser/top-10/tags/4.5.2/includes/frontend/class-display.php#L153
- https://plugins.trac.wordpress.org/browser/top-10/tags/4.5.2/includes/frontend/class-display.php#L170
- https://plugins.trac.wordpress.org/browser/top-10/tags/4.5.2/includes/util/class-helpers.php#L693
- https://plugins.trac.wordpress.org/browser/top-10/tags/4.5.3/includes/frontend/class-display.php
- https://plugins.trac.wordpress.org/changeset/3747022
- https://www.wordfence.com/threat-intel/vulnerabilities/id/4db4a201-a7fa-4764-87cb-c54b64adf560?source=cve