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.
Fix
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/discourse/discourse/commit/43536b60d012cc8084e7e701d6afab9ba01e28a5 Patch
- https://github.com/discourse/discourse/security/advisories/GHSA-7xjr-4f4g-9887 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.5 · discourseNVD modified 2026-10-19 17:10
Affected (CPE criteria) 3
cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*cpe:2.3:a:discourse:discourse:3.6.0:beta1:*:*:beta:*:*:*