CVE-2026-85135
Received Received - Intake

Unrestricted File Upload in ILIAS

Publication date: 2026-09-03

Last updated on: 2026-09-03

Assigner: VulDB

Description
A security flaw has been discovered in ILIAS up to 9.21/10.9/11.2. This affects the function ilObjMediaObjectGUI::uploadMultipleSubtitleFileObject of the file Services/Repository/Service/Resources/ZipAdapter.php of the component MediaPool. The manipulation results in unrestricted upload. The attack may be launched remotely. Upgrading to version 9.22, 10.10 and 11.3 is able to mitigate this issue. The patch is identified as ef5d7f99fe1ea0381db04b333a2906548b3590e4/b0d61be43671b6bfe91baf469a5ee11e764f2e23. It is recommended to upgrade the affected component.

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Meta Information

Published
2026-09-03
Last Modified
2026-09-03
Generated
2026-09-03
AI Q&A
2026-09-03
EPSS Evaluated
N/A
NVD
CVE-2026-85135
EUVD
EUVD-2026-70478

Affected Vendors & Products

Showing 3 associated CPEs
Vendor Product Version / Range
ilias ilias to 9.22 (exc)
ilias ilias to 10.10 (exc)
ilias ilias to 11.3 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-434 The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
CWE-284 The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

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Executive Summary

This vulnerability is an unrestricted file upload flaw in ILIAS versions up to 9.21, 10.9, and 11.2. It exists in the ilObjMediaObjectGUI::uploadMultipleSubtitleFileObject function within the Services/Repository/Service/Resources/ZipAdapter.php file, specifically in the MediaPool component. The issue allows attackers to upload arbitrary files without restrictions by manipulating the subtitle file upload process.

Detection Guidance

To detect this vulnerability, check the version of ILIAS installed on your system. Compare it against versions 9.21, 10.9, and 11.2. If your version is within this range, the system is vulnerable. Look for unauthorized file uploads in the MediaPool component, particularly in Services/Repository/Service/Resources/ZipAdapter.php.

Impact Analysis

This vulnerability could allow remote attackers to upload malicious files to the server. This may lead to remote code execution, data theft, or unauthorized access to the system. The impact includes potential compromise of the ILIAS instance, disruption of services, and exposure of sensitive data stored within the application.

Compliance Impact

This vulnerability could lead to data breaches, which may violate GDPR and HIPAA requirements for data protection and confidentiality. Organizations using affected ILIAS versions risk non-compliance due to potential unauthorized access to personal or health data, resulting in legal penalties and reputational damage.

Mitigation Strategies

Immediately upgrade ILIAS to version 9.22, 10.10, or 11.3 or later. Apply the patch identified as ef5d7f99fe1ea0381db04b333a2906548b3590e4 or b0d61be43671b6bfe91baf469a5ee11e764f2e23. Disable or restrict access to the MediaPool component if an upgrade is not immediately possible.

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