Mattermost Confluence vulnerabilities

🔔 Create alert RSS Version checker

Published CVEs affecting Mattermost Confluence: 1 record(s), with affected versions and fixes.
cpe:2.3:a:mattermost:confluence

CVE-2025-13523 Medium · 5.4 CWE-79 Feb 6, 2026

Cross-Site Scripting (XSS) via Unescaped Display Names in Mattermost Confluence Plugin OAuth2 Flow

Mattermost Confluence plugin version <1.7.0 fails to properly escape user-controlled display names in HTML template rendering which allows authenticated Confluence users with malicious display names to execute arbitrary JavaScript in victim browsers via sending a specially crafted OAuth2 connection link that, when visited, renders the attacker's display name without proper sanitization. Mattermost Advisory ID: MMSA-2025-00557