What is CVE-2022-24824?

CVE-2022-24824 is a medium-severity vulnerability in Discourse, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 5.3/10. Published 2022-04-14.

How severe is CVE-2022-24824?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Discourse

CVE-2022-24824

Discourse is an open source platform for community discussion. In affected versions an attacker can poison the cache for anonymous (i.e. not logged in) users, such that the users are shown the crawler view of the site instead of the HTML page. This can lead to a partial denial-of-service. This issue is patched in the latest stable, beta and tests-passed versions of Discourse. There are no known workarounds for this issue.

Published 2022-04-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.010 (61.9th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: +0.000

Affected products

Discourse — versions 2.9.0, < 2.9.0.beta4, < 2.8.3

Weakness classification (CWE)

CWE-829 — Inclusion of Functionality from Untrusted Control Sphere

References

github.com/discourse/discourse/security/advisories/GHSA-46v9-3jc4-f53w (Third Party Advisory)
github.com/discourse/discourse/commit/b72b0dac10493d09f4f9eb8f3c3ce7817295e34e (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-24824?: CVE-2022-24824 is a medium-severity vulnerability in Discourse, classified under Inclusion of Functionality from Untrusted Control Sphere. CVSS score: 5.3/10. Published 2022-04-14.
How severe is CVE-2022-24824?: Medium severity. CVSS v3 base score is 5.3 out of 10.