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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/opencast/opencast/commit/e2cc65d6fbe052ebb71d9f6b583bb54b181af009 Patch
- https://github.com/opencast/opencast/pull/6979 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 2.7 · apereoNVD modified 2026-10-19 17:10
Affected (CPE criteria) 2
cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:*cpe:2.3:a:apereo:opencast:18.0:*:*:*:*:*:*:*