CVE-2025-24972: Discourse

Medium severity, CVSS 4.3. EPSS: 0.4% chance of exploitation in the next 30 days.

Discourse is an open-source discussion platform. Prior to versions `3.3.4` on the `stable` branch and `3.4.0.beta5` on the `beta` branch, in specific circumstances, users could be added to group direct messages despite disabling direct messaging in their preferences. Versions `3.3.4` and `3.4.0.beta5` contain a patch for the issue. A workaround is available. If a user disables chat in their preferences then they cannot be added to new group chats.

Affected products

• Discourse Discourse: before 3.3.4 (fixed in 3.3.4); before 3.4.0 (fixed in 3.4.0); version 3.4.0 only

Published 2025-03-26. Last modified 2026-06-17.