CVE-2026-120019: falha de média gravidade em boldgrid W3 Total Cache
W3 Total Cache <= 2.10.7 - Unauthenticated Stored Cross-Site Scripting via Comment Content via Predictable Minify Placeholder
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
33Vexday Risk Score
Sem sinal de exploração. Ela tem prova de conceito pública.
ssvc Attendcvss 5.4epss 0.2%
da publicação à arma4 dias
Publicada no NVD31 de out.
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
Produtos afetados
boldgrid · W3 Total CachePoCs públicas encontradas — 1
githubgithub.com/Hassham1/CVE-2026-120019-w3tc-mfunc-comment-xss-poc★ 0⚠ Recursos públicos, para você avaliar a exposição de sistemas que controla ou está autorizado a testar. Teste apenas com autorização.
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Referências
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