CVE-2026-110761
HIGH
CVSS 8.8
Published: 2026-10-14
Modified: 2026-10-14
Tenable Plugin
Checking the public Tenable catalog…
Threat Intelligence Pending
IOCs, MITRE ATT&CK techniques, and attack chain data are being generated. Refresh in a few seconds.
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.
Quick Facts
| CVE ID | CVE-2026-110761 |
| CVSS Score | 8.8 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Published | 2026-10-14 |
| Exploited | No |
| CISA KEV | No |
| PoC | Not public |
References
- https://docu.ilias.de/go/blog/15821/952
- https://docu.ilias.de/ilias.php?baseClass=illmpresentationgu…
- https://github.com/ILIAS-eLearning/ILIAS
- https://github.com/ILIAS-eLearning/ILIAS/blob/2a3758ee3b01e5…
- https://github.com/ILIAS-eLearning/ILIAS/blob/2a3758ee3b01e5…
- https://github.com/ILIAS-eLearning/ILIAS/commit/267d4645ea94…
- https://github.com/ILIAS-eLearning/ILIAS/commit/ac4684239641…
- https://github.com/ILIAS-eLearning/ILIAS/commit/cf4e9c230edf…
- https://www.vulncheck.com/advisories/ilias-before-9.24-10.12…