CVE-2023-43659

Description

Discourse is an open source platform for community discussion. Improper escaping of user input allowed for Cross-site Scripting attacks via the digest email preview UI. This issue only affects sites with CSP disabled. This issue has been patched in the 3.1.1 stable release as well as the 3.2.0.beta1 release. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled on the forum.

References

https://github.com/discourse/discourse/security/advisories/GHSA-g4qg-5q2h-m8ph

https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3