CVE-2023-22455 Information

Description

Discourse is an option source discussion platform. Prior to version 2.8.14 on the stable branch and version 3.0.0.beta16 on the beta and tests-passed branches tag descriptions which can be updated by moderators can be used for cross-site scripting attacks. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. Versions 2.8.14 and 3.0.0.beta16 contain a patch.

Reference

https://github.com/discourse/discourse/commit/692329896ac64d8581947e977202c243eef3b5a2 https://github.com/discourse/discourse/security/advisories/GHSA-5rq6-466r-6mr9