Vulnerability Details CVE-2023-47120
Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 47.9%
CVSS Severity
CVSS v3 Score 7.5
References
- https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852
- https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce
- https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3
- https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852
- https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce
- https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3