CVE-2025-55202: apereo opencast Relative Path Traversal

Vulnerability summary

CVE-2025-55202 is a medium (CVSS 5.3) Relative Path Traversal vulnerability in apereo opencast. EPSS estimates a 0.39% chance of exploitation in the next 30 days, higher than 31.1% of scored vulnerabilities.

Timeline

1. 29-08-2025
   PublishedVulnerability first disclosed.
2. 29-08-2025
   Last modifiedVulnerability information updated.

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.

• CWE-23Relative Path TraversalThe product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.