CVE-2026-110761
CVE-2026-110761 · ILIAS before 9.24, 10.12, and 11.5 PHP Object Injection via Test Results Import
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.7 · High · EPSS 0.6% · Fix available
- Published
- Updated
Affected products and versions
ilias
- Versions
- ≥ 9.0, < 9.24: Affected (custom)
- ≥ 10.0, < 10.12: Affected (custom)
- ≥ 11.0, < 11.5: Affected (custom)
Update to 10.12; Update to 11.5; Update to 9.24
Original sources
- https://docu.ilias.de/go/blog/15821/952
- https://docu.ilias.de/ilias.php?baseClass=illmpresentationgui&obj_id=228077&ref_id=35
- https://github.com/ILIAS-eLearning/ILIAS/commit/cf4e9c230edfd96fc94a1b1d355500aa8c6f1771
- https://github.com/ILIAS-eLearning/ILIAS/commit/267d4645ea940f8f97d1a9838deff6a12097564d
- https://github.com/ILIAS-eLearning/ILIAS/commit/ac4684239641fb3dab2d636b53a61c46462d1208
- https://github.com/ILIAS-eLearning/ILIAS/blob/2a3758ee3b01e5c66922e08f58a2189146b884d4/components/ILIAS/Test/classes/class.ilObjTest.php#L7364
- https://github.com/ILIAS-eLearning/ILIAS/blob/2a3758ee3b01e5c66922e08f58a2189146b884d4/components/ILIAS/Test/classes/class.ilTestResultsImportParser.php#L225
- https://github.com/ILIAS-eLearning/ILIAS
- https://www.vulncheck.com/advisories/ilias-before-9.24-10.12-and-11.5-php-object-injection-via-test-results-import
- https://nvd.nist.gov/vuln/detail/CVE-2026-110761