CVE-2025-55202

Opencast has a partial path traversal vulnerability in UI config

MEDIUM
5.3
CVSS Score
Published: August 29, 2025 at 03:35 PM UTC
Updated: October 19, 2026 at 05:10 PM UTC
2 products affected across 2 vendorsOpencastOpencast

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 17.718.0
Affected range stops below 17.7, so it looks safe — our inference, not a vendor statement
v < 17.7= 18.0
Affected range stops below 17.7, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-23

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