Vulnerability in Discourse

CVE-2024-55948

Discourse is an open source platform for community discussion. In affected versions an attacker can make craft an XHR request to poison the anonymous cache (for example, the cache may have a response with missing preloaded data). This issue only affects anonymous visitors of the site. This problem has been patched in the latest version of Discourse. Users are advised to upgrade. Users unable to upgrade should disable anonymous cache by setting the `DISCOURSE_DISABLE_ANON_CACHE` environment variable to a non-empty value.

EPSS: 0.002 (16.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L.

Affected products

  • Discourse — versions stable: < 3.3.2, tests-passed: < 3.4.0.beta3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-55948?
CVE-2024-55948 is a high-severity vulnerability in Discourse, classified under Origin Validation Error. CVSS score: 8.2/10. Published 2025-02-04.
How severe is CVE-2024-55948?
High severity. CVSS v3 base score is 8.2 out of 10.