CVE-2026-53963
9.0 CritiqueDescription
Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a malicious second factor name on an attacker-controlled account was not escaped in the delete confirmation dialog, allowing stored cross-site scripting when an administrator impersonated that account. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 7.3 Élevée | security-advisories@github.com | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N |
| 3.1 | 9.0 Critique | nvd@nist.gov (NVD) | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H |
Faiblesses (CWE)
Références
- https://github.com/discourse/discourse/commit/40de62cddadc65c328a1028ab999f3fa94adbfed Patch
- https://github.com/discourse/discourse/commit/529e17d4d570a48972e7cf64720e5dd1fdf23ca8 Patch
- https://github.com/discourse/discourse/commit/d92973e51a46cf6dd20c71e6068e6769b67eea5b Patch
- https://github.com/discourse/discourse/commit/daea5214d833eacbdd3b1a78d99eb14e9cabd915 Patch
- https://github.com/discourse/discourse/releases/tag/v2026.1.5 Release Notes
- https://github.com/discourse/discourse/releases/tag/v2026.4.2 Release Notes
- https://github.com/discourse/discourse/releases/tag/v2026.5.1 Release Notes
- https://github.com/discourse/discourse/releases/tag/v2026.6.0 Release Notes
- https://github.com/discourse/discourse/security/advisories/GHSA-wg5x-7f23-m3r5 MitigationVendor Advisory