CVE-2024-28242: Discourse

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Discourse is an open source platform for community discussion. In affected versions an attacker can learn that secret categories exist when they have backgrounds set. The issue is patched in the latest stable, beta and tests-passed version of Discourse. Users are advised to upgrade. Users unable to upgrade should temporarily remove category backgrounds.

Affected products

• Discourse Discourse: before 3.2.0 (fixed in 3.2.0); before 3.3.0 (fixed in 3.3.0); version 3.3.0 only

Published 2024-03-15. Last modified 2026-06-17.