CVE-2026-108113: ILIAS before 9.24, 10.12, and 11.5 Unrestricted File Upload via QTI Import
ILIAS before 9.24, 10.12, and 11.5 contains an unrestricted file upload vulnerability in QTI question import image handling (ilQtiMatImageSecurity) that allows authenticated authors to write executable files. Attackers with question pool import rights can import a crafted archive writing a .htaccess and PHP file to the web-served image directory, achieving remote code execution as the web server user.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ILIASto a version that resolves this vulnerability.Fixed in 9.24 - Upgrade
Upgrade
ILIASto a version that resolves this vulnerability.Fixed in 10.12 - Upgrade
Upgrade
ILIASto a version that resolves this vulnerability.Fixed in 11.5
Event History
Frequently Asked Questions
Who can exploit this vulnerability?
An authenticated ILIAS user with question pool import rights can exploit it. The attacker needs to be able to import a crafted QTI archive.
What is the impact of successful exploitation?
A successful attacker can write a .htaccess file and a PHP file into a web-served image directory. This can lead to remote code execution as the web server user.
Which versions are affected?
Affected releases are ILIAS versions before 9.24, before 10.12, and before 11.5.