CVSS 9.3 (critical) · published 2026-08-25
The extension fails to safely process untrusted client input of an attacker-controlled cookie directly to PHP's unserialize(). A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server.
Weakness: CWE-502
Source: NVD CVE-2026-77138
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