CVE-2025-54411

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/discourse/discourse/commit/a3374d2850f07444d113216e1d539ee21650dbff
https://github.com/discourse/discourse/security/advisories/GHSA-5mm6-j5vq-6884

Configurations

No configuration.

History

20 Aug 2025, 14:40

Type	Values Removed	Values Added
Summary		(es) Discourse es una plataforma de discusión de código abierto. El nombre de usuario del banner de bienvenida para usuarios registrados puede ser vulnerable a ataques XSS, que afectan al usuario o a un administrador que se hace pasar por él. Los administradores pueden modificar temporalmente el texto del sitio welcome_banner.header.logged_in_members para eliminar el marcador de posición preferred_display_name o no suplantar a ningún usuario por el momento. Esta vulnerabilidad se corrigió en la versión 3.5.0.beta8.

19 Aug 2025, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-08-19 17:15

Updated : 2025-08-20 14:40

NVD link : CVE-2025-54411

Mitre link : CVE-2025-54411

CVE.ORG link : CVE-2025-54411

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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