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Case File

CVE-2021-43794

MEDIUM · CVSS 5.3 EPSS 1.02% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-12-01 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 5.3. Public exploit code or proof-of-concept references have been detected in its references. It may lead to a denial-of-service condition.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-43794
Severity
MEDIUM
CVSS
5.3
EPSS
1.02%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)