XSS in Discourse

CVE-2024-37165

Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability is fixed in 3.2.3 and 3.3.0.beta3.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (28.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-37165: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

  • Discourse — versions < 3.2.3, 3.3.0, >= 3.3.0.beta1, < 3.3.0.beta3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-37165?
CVE-2024-37165 is a medium-severity vulnerability in Discourse, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2024-07-30.
How severe is CVE-2024-37165?
Medium severity. CVSS v3 base score is 6.3 out of 10.