GHSA-8X3J-439W-537C TYPO3 Remote Code Execution in extension "Content Element Selector" (ceselector)

The TYPO3 "Content Element Selector" ceselector extension passes an attacker-controlled cookie directly to PHP's unserialize without safely processing the input. A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code...