CVE-2026-8727
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
May 19, 2026
Vendor
unknown
Description
The 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 administrative privileges to configure a crawler-enabled page and trigger the crawl via a Scheduler task.