CVE-2025-55202: opencast Path Traversal — Fix

Description

Opencast is a free, open-source platform to support the management of educational audio and video content. In version 18.0 and versions before 17.7, the protections against path traversal attacks in the UI config module are insufficient, still partially allowing for attacks in very specific cases. The path is checked without checking for the file separator. This could allow attackers access to files within another folder which starts with the same path. This issue has been fixed in versions 17.7 and 18.1. To mitigate this issue, check for folders that start with the same path as the ui-config folder.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness Type (CWE)

CWE-23 CWE-23

Affected Products

Vendor	Product	Versions
apereo	opencast	< 17.7
apereo	opencast	All

References

Advisories & Patches

https://github.com/opencast/opencast/commit/e2cc65d6fbe052ebb71d9f6b583bb54b181af009 https://github.com/opencast/opencast/pull/6979

Other References

https://github.com/opencast/opencast/security/advisories/GHSA-hq8m-v68g-8cf8

Frequently Asked Questions

What is CVE-2025-55202? +

Opencast is a free, open-source platform to support the management of educational audio and video content. In version 18.0 and versions before 17.7, the protections against path traversal attacks in the UI config module are insufficient, still partially allowing for attacks in very specific cases. The path is checked without checking for the file separator. This could allow attackers access to files within another folder which starts with the same path. This issue has been fixed in versions 17.7 and 18.1. To mitigate this issue, check for folders that start with the same path as the ui-config folder. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-55202? +

CVE-2025-55202 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-55202? +

CVE-2025-55202 affects products from apereo, specifically: opencast. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-55202? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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