CVE-2026-120019: fallo de gravedad media en boldgrid W3 Total Cache
W3 Total Cache <= 2.10.7 - Unauthenticated Stored Cross-Site Scripting via Comment Content via Predictable Minify Placeholder
Publicada el · Actualizada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
33Vexday Risk Score
Sin señal de explotación. Ella tiene prueba de concepto pública.
ssvc Attendcvss 5.4epss 0.2%
de la publicación al arma4 días
Publicada en NVD31 oct
1ª PoC+4d
The W3 Total Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment' parameter in all versions up to, and including, 2.10.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires HTML Minify to be enabled with the default 'mfunc' entry present in the ignored-comment stems list, and exploitation depends on the attacker predicting the md5(time()) placeholder namespace by reading the server clock via the HTTP Date response header within the applicable time window.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
Productos afectados
boldgrid · W3 Total CachePoCs públicas encontradas — 1
githubgithub.com/Hassham1/CVE-2026-120019-w3tc-mfunc-comment-xss-poc★ 0⚠ Recursos públicos, para evaluar la exposición de sistemas que controlas o estás autorizado a probar. Prueba solo con autorización.
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Referencias
https://github.com/BoldGrid/w3-total-cache/commit/35c6896332aff6b41888db0595cf09b4c98c814chttps://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/lib/Minify/Minify/IgnoredCommentPreserver.php#L10https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/lib/Minify/Minify/IgnoredCommentPreserver.php#L25https://plugins.trac.wordpress.org/browser/w3-total-cache/tags/2.10.7/Minify_Plugin.php#L625https://plugins.trac.wordpress.org/changeset/3757452/w3-total-cache/trunk/lib/Minify/Minify/IgnoredCommentPreserver.phphttps://www.wordfence.com/threat-intel/vulnerabilities/id/3a14a537-64e7-415b-be8e-a3a9377fd20d?source=cve