CVE-2025-59337 Discourse: Cross-Site Data Exposure via Backup Restore Metacommand Injection in Multisite Deployments

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 fixe...