XSS in Discourse
CVE-2024-23834
Discourse is an open-source discussion platform. Improperly sanitized user input could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. The vulnerability is patched in 3.1.5 and 3.2.0.beta5. As a workaround, ensure Content Security Policy is enabled and does not include `unsafe-inline`.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.005 (39.2th percentile) — read the EPSS interpretation.
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.
Affected products
- Discourse — versions < 3.1.5, 3.2.0, >= 3.2.0.beta1, < 3.2.0.beta5
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- security-advisories@github.com (x_refsource_MISC, Release Notes, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-23834?
- CVE-2024-23834 is a medium-severity vulnerability in Discourse, classified under Cross-site Scripting. CVSS score: 6.3/10. Published 2024-01-30.
- How severe is CVE-2024-23834?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2024-23834 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.