VDB
CVE-2025-13523
CVE-2025-13523
PUBLISHED
CVSS 7.699999809265137 HIGH
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
EPSS 0.22% · 11.8th percentile
Risk Scores
CVSS 3.1
7.699999809265137
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
EPSS Score
0.22%
11.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| mattermost | confluence | 1.0.0, 1.0.0 |
| github.com | mattermost/mattermost-plugin-confluence | 0, 0 |
| Mattermost | Mattermost Confluence Plugin | 1.7.0, 0, 1.7.0 |
Timeline
- Feb 6, 2026 CVE Published
- Feb 6, 2026 PoC Published
- Feb 7, 2026 EPSS Score
- Feb 10, 2026 EPSS Score
- Feb 12, 2026 EPSS Score
- Feb 15, 2026 EPSS Score
- Feb 17, 2026 EPSS Score
- Feb 20, 2026 EPSS Score
- Feb 23, 2026 EPSS Score
- Feb 25, 2026 EPSS Score
- Feb 28, 2026 EPSS Score
- Mar 2, 2026 EPSS Score