GHSA-JR8M-X4P7-P3V5 TYPO3 Remote Code Execution in extension "Site Crawler" (crawler)

The TYPO3 Crawler extension passes the X-T3Crawler-Meta response header from crawled URLs directly to PHP's unserialize. An attacker controlling a crawled endpoint can inject arbitrary serialized PHP objects, leading to Remote Code Execution on the TYPO3 server. Exploitation requires administrati...