CVE-2026-80428

Summary

ILIAS before versions 9.22, 10.10, and 11.3 contains an unauthenticated PHP object injection vulnerability that allows unauthenticated attackers to execute arbitrary code by injecting serialized objects through the LTI authentication endpoint and triggering deserialization via the Shibboleth back-channel logout endpoint. Attackers can write arbitrary serialized objects into session storage, then exploit an available POP gadget through the logout endpoint's unrestricted deserialization to write attacker-controlled PHP content to a web-accessible path and achieve remote code execution as the web server user.

Affected Software

VendorProductVersion RangeStatus
ILIAS-eLearning e.V.ILIAS9.0 < 9.22affected
ILIAS-eLearning e.V.ILIAS10.0 < 10.10affected
ILIAS-eLearning e.V.ILIAS11.0 < 11.3affected

Weaknesses

  • CWE-502: Deserialization of Untrusted Data

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: total

References