Security Advisory

CVE-2025-13523

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-02-06 15:52:31

Last updated 2026-02-06 16:23:06

Assigner Mattermost

State PUBLISHED

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 attackers display name without proper sanitization. Mattermost Advisory ID: MMSA-2025-00557

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