CVE-2026-110761

8.8High

Published 14 Oct 2026 · NVD status: Deferred · AI triage by gemini-3.8-flash

8.8High

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None
Impact: Full C/I/A compromise
Weakness: CWE-502

Impact

Authenticated users with Test creation or import permissions can execute arbitrary code by writing PHP files through gadget chains. They only need low-privilege access allowing Test archive imports.

Root cause

The Test results import parser passes an untrusted tst_sequence sequence attribute directly into PHP's unserialize() function.

Affected systems

ILIAS versions before 9.24, 10.12, and 11.5

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Fix & remediation

Upgrade ILIAS to version 9.24, 10.12, 11.5, or later. If patching immediately is not possible, revoke Test creation and import permissions from non-administrative users.

shell

$ git pull && git checkout v9.24.0

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD 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.

References

Source: nvd.nist.gov/vuln/detail/CVE-2026-110761