Home/CVE/Discourse is an open source platform for community discussion. In affected versions an attacker can poison the cache for
CVE

CVE-2022-24824

Discourse is an open source platform for community discussion. In affected versions an attacker can poison the cache for

Discourse is an open source platform for community discussion. In affected versions an attacker can poison the cache for anonymous (i.e. not logged in) users, such that the users are shown the crawler view of the site 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. There are no known workarounds for this issue.

MEDIUM · CVSS 5.3 EPSS 0.00379
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-829Inclusion of Functionality from Untrusted Control Sphere
▤

Affected Products & Versions

2
discourse< 2.8.3
discourseall versions
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 Apr 2022 · 10:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/discourse/discourse/commit/b72b0dac10493d09f4f9eb8f3c3ce7817295e34ePatchThird Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-46v9-3jc4-f53wThird Party Advisory
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