Description (CNA)
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, when the hidden prioritize_full_name_in_ux site setting is enabled (defaults to false, requires console access to change), user and group display names are rendered without HTML escaping in several assignment-related UI paths. This allows users with assign permission to inject arbitrary HTML/JavaScript that executes in the browser of any user viewing an affected topic. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| discourse / discourse | affected >= 2026.1.0-latest, < 2026.1.3; affected >= 2026.2.0-latest, < 2026.2.2; affected >= 2026.3.0-latest, < 2026.3.0 |
CWE
CWE-79
References
- https://github.com/discourse/discourse/security/advisories/GHSA-xg68-q7ff-6gqm
- https://github.com/discourse/discourse/commit/46edb174e237c6e57bda9c494160da0a174fe70d
ADP enrichment
No English description supplied.
No references supplied.