CVE-2025-52931CWE-754

Unexpected input to Update Channel Subscription endpoint causes DoS in Mattermost Confluence Plugin

High · published August 11, 2025

CVSS v3.1
7.5
EPSS
0%
Percentile
25.9
In the wild
Unconfirmed
What it is

Mattermost Confluence Plugin version <1.5.0 fails to handle unexpected request body which allows attackers to crash the plugin via constant hit to update channel subscription endpoint with an invalid request body.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00337 · 25.9th percentile
Weakness
CWE-754 · Improper Check for Unusual or Exceptional Conditions
Published
2025-08-11T18:57Z
EPSS history
Timeline
  • 11 AUG 18:57Z
    Unexpected input to Update Channel Subscription endpoint causes DoS in Mattermost Confluence Plugin
    cvelistv5