CVE-2024-23834

Name: CVE-2024-23834
Creator: NVD / NIST
Published: 2024-01-30T22:15:53.307+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.1/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2024-23834 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. Discourse is an open-source discussion platform. Improperly sanitized user input could lead to an XSS vulnerability in some situations. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

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`.

Metrics

CVSS 3.1

6.1/10

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

EPSS Probability

0.49%

38.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions	Update
Discourse	Discourse	< 3.1.5	—
Discourse	Discourse	< 3.2.0	—
Discourse	Discourse	3.2.0	Beta1

References

https://github.com/discourse/discourse/commit/568d704a94c528b7c2cb0f3512a7b7b606bc3000Patch
https://github.com/discourse/discourse/security/advisories/GHSA-rj3g-8q6p-63pcVendor Advisory
https://meta.discourse.org/t/3-1-5-security-and-bug-fix-release/293094Release Notes, Vendor Advisory
https://meta.discourse.org/t/3-2-0-beta5-add-groups-to-dms-mobile-chat-footer-redesign-passkeys-enabled-by-default-and-more/293093Release Notes, Vendor Advisory
https://github.com/discourse/discourse/commit/568d704a94c528b7c2cb0f3512a7b7b606bc3000Patch
https://github.com/discourse/discourse/security/advisories/GHSA-rj3g-8q6p-63pcVendor Advisory
https://meta.discourse.org/t/3-1-5-security-and-bug-fix-release/293094Release Notes, Vendor Advisory
https://meta.discourse.org/t/3-2-0-beta5-add-groups-to-dms-mobile-chat-footer-redesign-passkeys-enabled-by-default-and-more/293093Release Notes, Vendor Advisory

Timeline

Published: Jan 30, 2024
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2024-23834?

How severe is CVE-2024-23834?

CVE-2024-23834 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2024-23834?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-23834?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST