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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-80428

ILIAS PHP Object Injection via Shibboleth Logout

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Status
Published
Published
Updated
Assigning organization
VulnCheck

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

ILIAS-eLearning e.V. ILIAS

Default version status: unaffected

  • 9.0 to < 9.22affected
  • 10.0 to < 10.10affected
  • 11.0 to < 11.3affected
pkg:github/ILIAS-eLearning/ILIAS

References