Security Advisory

CVE-2026-91939

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-15 20:56:45

Last updated 2026-09-15 20:56:45

Assigner VulnCheck

CVSS score 9.8

State PUBLISHED

Description

Cotonti 1.0.0 Comments plugin passes the ci GET parameter to unserialize() without allowed_classes restriction, allowing unauthenticated attackers to instantiate arbitrary PHP classes with attacker-controlled properties. Attackers can exploit PHP object injection through crafted serialized payloads to trigger gadget chains and achieve database manipulation or code execution.

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