CVE-2021-43794 MEDIUM

CVE-2021-43794: Anonymous user cache poisoning via development-mode header in Discourse

Vendor Discourse
Product discourse
Weakness CWE-610
Published December 1, 2021
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

December 1, 2021 CVE published
August 4, 2024 Record updated