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CVE Watch23 jul 2026

CVE-2026-7882

Concrete CMS 9.5.0 and below is vulnerable to unauthorized file deletion due to an Inverted CSRF token check in the DeleteFile controller. 

CVSS

4.3

Medio

EPSS

0.1%

p2

KEV

—

Exploit Today

0

0-100

Publicado: 21 may 2026 · Última mod.: 23 jul 2026 · CWE-352

EPSS · 30d
0.1%EPSS · 30 días0.2%
2026-10-052026-11-01
Descripción técnica

Concrete CMS 9.5.0 and below is vulnerable to unauthorized file deletion due to an Inverted CSRF token check in the DeleteFile controller. The code throws an error when the token IS valid and proceeds with file deletion when the token is invalid or missing. This effectively disables CSRF protection for the file deletion endpoint, allowing cross-site request forgery attacks against users who have permission to edit conversation messages. The Concrete CMS security team gave this vulnerability a CVSS v.4.0 score of 2.3 with a vector of CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N. Thanks Tristan Mandani for reporting.

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