CVE-2025-52931

HIGH

Mattermost Confluence < 1.5.0 - Improper Condition Check

Title source: rule

Description

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.

References (1)

[Vendor Advisory] https://mattermost.com/security-updates

Scores

CVSS v3 7.5

EPSS 0.0010

EPSS Percentile 27.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-754

Status published

Products (2)

mattermost/confluence < 1.5.0

mattermost/mattermost-plugin-confluence 0 - 1.5.0Go

Published Aug 11, 2025

Tracked Since Feb 18, 2026