CVSS 3.1
5.4 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NCVE-2025-13523
Medium (5.4) in mattermost confluence. EPSS 0.2% chance of exploitation in the next 30 days. Fixed in github.com/mattermost/mattermost-plugin-confluence 1.7.0.
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
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-31)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:confluence
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-ffx7-34p2-vm3w | Go | github.com/mattermost/mattermost-plugin-confluence | <1.7.0 | 1.7.0 |
| GO-2026-4456 | Go | github.com/mattermost/mattermost-plugin-confluence | <1.7.0 | 1.7.0 |