Discourse Vulnerable to Stored XSS via Shared AI Conversation Onebox
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.1epss 0.3%
probabilidad de explotación
0.3%top 73% de las CVE
explotación observada
noninguna fuente lo reporta
Discourse is an open-source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2, the onebox method in the SharedAiConversation model renders the conversation title directly into HTML without proper sanitization. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, tighten access by changing the `ai_bot_public_sharing_allowed_groups` site setting.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Productos afectados
discourse · discourseReferencias
https://github.com/discourse/discourse/commit/43a5a60b595f0120e6adfc131f2408508fe341f1https://github.com/discourse/discourse/commit/c14f8f52b7999328bd9f8665f2ecfa24dadc4bf1https://github.com/discourse/discourse/commit/f2aafa5c7467c94fcd4ebd36785a98e77ca088cchttps://github.com/discourse/discourse/security/advisories/GHSA-hfxw-89hw-vwmv