~ / search / GHSA-ffx7-34p2-vm3w

GHSA-ffx7-34p2-vm3w

Mattermost Confluence plugin doesn't properly escape user-controlled display names in HTML template rendering

Source: GitHub Advisory Database (reviewed) High CVE-2025-13523

Packages

EcosystemPackageAffectedFixed in
Go github.com/mattermost/mattermost-plugin-confluence < 1.7.0 1.7.0

Details

As written in the advisory (Markdown source, shown as plain text).

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

References

External links from the advisory. They lead to third-party sites.