Vulnerability Report

CVE-2025-53910

Title: Mattermost Confluence Broken Access Control

Other

Proof Of Concept

No public PoC currently indexed for CVE-2025-53910.

CWE Category CWE-862

Published Date Aug 11, 2025

Modified Date Sep 25, 2025

Exploit Status Not Found

Score 4.0 CVSS v3.1

Exploit Probability (EPSS)

0.20%

Vulnerability Summary

CVE-2025-53910: Mattermost Confluence Plugin version <1.5.0 fails to check the access of the user to the channel which allows attackers to create a channel subscription without proper access to the channel via API call to the edit channel subscription endpoint.

Impacted Vendors

atlassian 1

mattermost 1

Reference Links

https://mattermost.com/security-updates

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

4.0

Attack Vector

NETWORK

Complexity

HIGH

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

CHANGED

RAW VECTOR CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-53910 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

September 25, 2025 MODIFIED

Vulnerability data or affected products updated.

September 25, 2025 MODIFIED

Vulnerability data updated via NVD.

August 11, 2025 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK

Complexity HIGH

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.