Unrated severityNVD Advisory· Published Aug 19, 2025· Updated Aug 19, 2025
Discourse welcome banner user name XSS
CVE-2025-54411
Description
Discourse is an open-source discussion platform. Welcome banner user name string for logged in users can be vulnerable to XSS attacks, which affect the user themselves or an admin impersonating them. Admins can temporarily alter the welcome_banner.header.logged_in_members site text to remove the preferred_display_name placeholder, or not impersonate any users for the time being. This vulnerability is fixed in 3.5.0.beta8.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3<3.5.0.beta8+ 1 more
- (no CPE)range: <3.5.0.beta8
- (no CPE)range: < 3.5.0.beta8
Patches
Vulnerability mechanics
References
2- github.com/discourse/discourse/commit/a3374d2850f07444d113216e1d539ee21650dbffmitrex_refsource_MISC
- github.com/discourse/discourse/security/advisories/GHSA-5mm6-j5vq-6884mitrex_refsource_CONFIRM
News mentions
0No linked articles in our index yet.