CVE-2021-43794 (GCVE-0-2021-43794)

Vulnerability from cvelistv5 – Published: 2021-12-01 19:40 – Updated: 2024-08-04 04:03
VLAI?
Title
Anonymous user cache poisoning via development-mode header in Discourse
Summary
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.
Severity ?
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CWE
  • CWE-610 - Externally Controlled Reference to a Resource in Another Sphere
Assigner
References
Impacted products
Vendor Product Version
discourse discourse Affected: stable < 2.7.11
Affected: beta < 2.8.0.beta9
Affected: tests-passed < 2.8.0.beta9
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.