CVE-2026-110761

HighCVSS 8.8/10Last modified Oct 14, 2026

Description

ILIAS before 9.24, 10.12, and 11.5 contains a PHP object injection vulnerability that allows authenticated users with Test creation or import permission to deserialize arbitrary objects via crafted Test archives. Attackers can inject a malicious tst_sequence sequence attribute that is passed to unserialize(), abusing Guzzle or Monolog gadget chains to write PHP files and execute code.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-502

Affected software

Vendor	Product	Versions
ILIAS-eLearning e.V.	ILIAS	>= 9.0, < 9.24; >= 10.0, < 10.12; >= 11.0, < 11.5

References

Timeline

Published: Oct 14, 2026
Last modified: Oct 14, 2026
NVD status: Deferred

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