CVE-2022-36057: Discourse Discourse-Chat

Medium severity, CVSS 4.8. EPSS: 0.5% chance of exploitation in the next 30 days.

Discourse-Chat is an asynchronous messaging plugin for the Discourse open-source discussion platform. Users of Discourse Chat can be affected by admin users inserting HTML into chat titles and descriptions, causing a Cross-Site Scripting (XSS) attack. Version 0.9 contains a patch for this issue.

Affected products

• Discourse Discourse-Chat: before 0.9 (fixed in 0.9)

Published 2022-09-06. Last modified 2026-06-17.