5.3

CVE-2021-43794

Anonymous user cache poisoning via development-mode header in Discourse

Discourse is an open source discussion platform. In affected versions an attacker can poison the cache for anonymous (i.e. not logged in) users, such that the users are shown a JSON blob 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Discourse ≫ Discourse Version < 2.7.11
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.02% 0.588
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
security-advisories@github.com 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE-610 Externally Controlled Reference to a Resource in Another Sphere

The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.

https://github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1
Patch
Third Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-249g-pc77-65hp
Third Party Advisory