CVEvulnerability

CVE-2021-43794

5.3 MEDIUM Published 2021-12-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-12-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Weaknesses
CWE-610

Description

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.

Affected configurations

• discourse discourse (< 2.7.11)

Related

Weakness · CWE (1)

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

References