CVE-2025-53910CWE-862

Unauthorized Channel Subscription Edit in Mattermost Confluence Plugin

Medium · published August 11, 2025

CVSS v3.1
4.0
EPSS
0%
Percentile
9.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.0 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00198 · 9.0th percentile
Weakness
CWE-862 · Missing Authorization
Published
2025-08-11T18:57Z
EPSS history
Timeline
  • 11 AUG 18:57Z
    Unauthorized Channel Subscription Edit in Mattermost Confluence Plugin
    cvelistv5