CVE-2024-53266

Cross-site Scripting (XSS) via topic titles when CSP disabled in Discourse

CVSS 4.3 MEDIUMEPSS 0.3%CWE-79

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 4.3EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

04 Feb 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Discourse is an open source platform for community discussion. In affected versions with some combinations of plugins, and with CSP disabled, activity streams in the user's profile page may be vulnerable to XSS. This has been patched in the latest version of Discourse core. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

discourse · discourse

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References

https://github.com/discourse/discourse/security/advisories/GHSA-hw4j-4hg7-22h2