CVE-2022-46148: Discourse allows self-XSS through malicious composer message

First published: Tue Nov 29 2022(Updated: )

Discourse is an open-source messaging platform. In versions 2.8.10 and prior on the `stable` branch and versions 2.9.0.beta11 and prior on the `beta` and `tests-passed` branches, users composing malicious messages and navigating to drafts page could self-XSS. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. This issue is patched in the latest stable, beta and tests-passed versions of Discourse.

Credit: security-advisories@github.com security-advisories@github.com

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