CVE-2025-59337: Discourse

Medium severity, CVSS 6.8. EPSS: 0.3% chance of exploitation in the next 30 days.

Discourse is an open-source community discussion platform. In versions 3.5.0 and below, malicious meta-commands could be embedded in a backup dump and executed during restore. In multisite setups, this allowed an admin of one site to access data or credentials from other sites. This issue is fixed in version 3.5.1.

Affected products

• Discourse Discourse: before 3.5.1 (fixed in 3.5.1); before 3.6.0 (fixed in 3.6.0); version 3.6.0 only

Published 2025-10-01. Last modified 2026-06-17.