CVEvulnerability

CVE-2026-8727

7.1 HIGH Published 2026-05-19 Modified 2026-10-26 Official page ↗
Status
Deferred
Published
2026-05-19
Last modified
2026-10-26
Assigner
f4fb688c-4412-4426-b4b8-421ecf27b14a
CVSS 4.0 (f4fb688c-4412-4426-b4b8-421ecf27b14a)
7.1 HIGH — CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-502

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.

Related

Weakness · CWE (1)

  • CWE-502 Deserialization of Untrusted Data weakness

References