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CVE PROGRAM SOURCE RECORD7.7 High

CVE-2025-13523

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

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Status
Published
Published
Updated
Assigning organization
Mattermost

Description

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

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mattermost Mattermost Confluence Plugin

Default version status: unaffected

  • 0 to < 1.7.0affected
  • 1.7.0unaffected

References