CVE-2023-22454 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 pending post titles can be used for cross-site scripting attacks. Pending posts can be created by unprivileged users when a category has the equire moderator approval of all new topics\ setting set. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. A patch is available in versions 2.8.14 and 3.0.0.beta16.

Reference

https://github.com/discourse/discourse/security/advisories/GHSA-ggq4-4qxc-c462 https://github.com/discourse/discourse/commit/c0e2d7badac276d82a4056a994b48d68a8993a12