Vulnerability Description
Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, non-admin moderators with the `moderators_change_post_ownership` setting enabled can change ownership of posts in private messages and restricted categories they cannot access, then export their data to view the content. This is a broken access control vulnerability affecting sites that grant moderators post ownership transfer permissions. This issue is patched in versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0. The patch adds visibility checks for both the topic and posts before allowing ownership transfer. As a workaround, disable the `moderators_change_post_ownership` site setting to prevent non-admin moderators from using the post ownership transfer feature.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Discourse | Discourse | < 3.5.4 |
Related Weaknesses (CWE)
References
- https://github.com/discourse/discourse/security/advisories/GHSA-hpxv-mw7v-fqg2Third Party AdvisoryMitigation
FAQ
What is CVE-2025-68933?
CVE-2025-68933 is a vulnerability with a CVSS score of 6.9 (MEDIUM). Discourse is an open source discussion platform. In versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0, non-admin moderators with the `moderators_change_post_ownership` setting enabled can ch...
How severe is CVE-2025-68933?
CVE-2025-68933 has been rated MEDIUM with a CVSS base score of 6.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-68933?
Check the references section above for vendor advisories and patch information. Affected products include: Discourse Discourse.