PT-2025-32579 · Mattermost · Mattermost Confluence Plugin

Lorenzo Gallegos · Published 2025-07-10 · Updated 2025-08-20 · CVE-2025-53910

Positive Technologies (AI Summary)

CVSS v3.1

4.0

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Mattermost Confluence Plugin versions prior to 1.5.0

Description: The Mattermost Confluence Plugin does not verify user access to a channel, enabling attackers to create channel subscriptions without authorization through an API call to the edit channel subscription endpoint /api/v1/channels/{channel id}/subscriptions/{user id}. The vulnerable parameter is user id.

Recommendations: Update Mattermost Confluence Plugin to version 1.5.0 or later.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

BDU:2025-09759

CVE-2025-53910

GHSA-V6C8-G53H-MC2H

GO-2025-3869

OPENSUSE-SU-2025:15469-1

Affected Products

Mattermost Confluence Plugin

References · 31

• https://osv.dev/vulnerability/GO-2025-3869 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-53910 · Security Note
• https://osv.dev/vulnerability/GHSA-v6c8-g53h-mc2h · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-09759 · Security Note
• https://mattermost.com/security-updates · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-53910 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2025:15469-1 · Vendor Advisory
• https://github.com/mattermost/mattermost-plugin-confluence · Note
• https://suse.com/security/cve/CVE-2025-53514 · Note
• https://github.com/advisories/GHSA-v6c8-g53h-mc2h · Note
• https://t.me/CVEtracker/29707 · Telegram Post
• https://suse.com/security/cve/CVE-2025-44001 · Note
• https://suse.com/security/cve/CVE-2025-54478 · Note
• https://suse.com/security/cve/CVE-2025-54525 · Note
• https://suse.com/security/cve/CVE-2025-44004 · Note