CVE-2026-93872
HIGH
NVD
CVSS Score
7.5
Severity
HIGH
Published
Sep 18, 2026
Vendor
unknown
Description
Cotonti 1.0.0 passes the base64-decoded cb parameter to unserialize() without allowed_classes restriction in the comments plugin EditAction. Registered users with comment write permissions can instantiate arbitrary PHP objects and potentially achieve file write or code execution through gadget chains.