CVE-2026-32607
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| discourse | discourse | >= 2026.1.0-latest, < 2026.1.3 | affected |
| discourse | discourse | >= 2026.2.0-latest, < 2026.2.2 | affected |
| discourse | discourse | >= 2026.3.0-latest, < 2026.3.0 | affected |
Weaknesses
- CWE-79: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/discourse/discourse/security/advisories/GHSA-xg68-q7ff-6gqm
- https://github.com/discourse/discourse/commit/46edb174e237c6e57bda9c494160da0a174fe70d
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.