What is CVE-2024-47773?

CVE-2024-47773 is a high-severity vulnerability in Discourse, classified under Externally Controlled Reference to a Resource in Another Sphere. CVSS score: 8.2/10. Published 2024-10-08.

How severe is CVE-2024-47773?

High severity. CVSS v3 base score is 8.2 out of 10.

Is CVE-2024-47773 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Discourse

CVE-2024-47773

Discourse is an open source platform for community discussion. An attacker can make several XHR requests until the cache is poisoned with a response without any 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: 0.017 (74.2th 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.beta2

Weakness classification (CWE)

CWE-610 — Externally Controlled Reference to a Resource in Another Sphere

Public proof-of-concept exploits

ibrahmsql/CVE-2024-47773

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2024-47773?: CVE-2024-47773 is a high-severity vulnerability in Discourse, classified under Externally Controlled Reference to a Resource in Another Sphere. CVSS score: 8.2/10. Published 2024-10-08.
How severe is CVE-2024-47773?: High severity. CVSS v3 base score is 8.2 out of 10.
Is CVE-2024-47773 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.