rootpwn

high · CVSS v3 7.5 · CVSS v4 7.7

CVE-2026-93872

Cotonti 1.0.0 passes the base64-decoded cb parameter to unserialize() without allowed_classes restriction in the comment…

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.

Scores

Severity
high
CVSS v2
7.1
CVSS v3
7.5
CVSS v4
7.7
EPSS
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