Vulnerability Description
Discourse is an open source platform for community discussion. In affected versions the endpoint for generating inline oneboxes for URLs wasn't enforcing limits on the number of URLs that it accepted, allowing a malicious user to inflict denial of service on some parts of the app. This vulnerability is only exploitable by authenticated users. This issue has been patched in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. Users unable to upgrade should turn off the `enable inline onebox on all domains` site setting and remove all entries from the `allowed inline onebox domains` site setting.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Discourse | Discourse | < 3.3.3 |
Related Weaknesses (CWE)
References
- https://github.com/discourse/discourse/commit/416ec83ae57924d721e6e374f4cda78bd7Patch
- https://github.com/discourse/discourse/security/advisories/GHSA-49rv-574x-wgpcThird Party Advisory
FAQ
What is CVE-2024-53851?
CVE-2024-53851 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Discourse is an open source platform for community discussion. In affected versions the endpoint for generating inline oneboxes for URLs wasn't enforcing limits on the number of URLs that it accepted,...
How severe is CVE-2024-53851?
CVE-2024-53851 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-53851?
Check the references section above for vendor advisories and patch information. Affected products include: Discourse Discourse.