CVE Catalog

CVE-2026-71294

HighCVSS 7.6
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.22%

13th percentile - higher than 13% of all known CVEs

Summary

Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/CreateAction.php, a POST parameter obtained via (trim-only sanitization) is passed with no restriction, reachable by any member with write access to comments (the default setting).

Risk Assessment

This could lead to deserialization attacks, potentially allowing remote code execution or unauthorized system access.

Recommendation

Update Cotonti CMS to a patched version or restrict comment permissions and use safe deserialization with class allowlists.

Related vulnerabilities

Original NVD description (English source)

Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/CreateAction.php, a POST parameter obtained via (trim-only sanitization) is passed to with no restriction, reachable by any member with write access to comments (the default setting in plugins/comments/comments.setup.php).

Vulnerability data from NVD (NIST) · CISA KEV · EPSS