CVE-2025-44004CWE-306

Unauthenticated Channel Subscription Creation in Mattermost Confluence Plugin

High · published August 11, 2025

CVSS v3.1
7.2
EPSS
0%
Percentile
9.9
In the wild
Unconfirmed
What it is

Mattermost Confluence Plugin version <1.5.0 fails to check the authorization of the user to the Mattermost instance which allows attackers to create a channel subscription without proper authorization via API call to the create channel subscription endpoint.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00205 · 9.9th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2025-08-11T18:56Z
EPSS history
Timeline
  • 11 AUG 18:56Z
    Unauthenticated Channel Subscription Creation in Mattermost Confluence Plugin
    cvelistv5