CVE-2022-31182 - CVE House

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Status published Medium CVE-2022-31182

Cache poisoning via maliciously-formed request in Discourse

5.3 CVSS

Vulnerability Description

Discourse is the an open source discussion platform. In affected versions a maliciously crafted request for static assets could cause error responses to be cached by Discourse's default NGINX proxy configuration. A corrected NGINX configuration is included in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from discourse

View All →

Discourse has insecure default configuration that allows non-admin moderators to takeover any non-staff account via email change

Discourse moderators can access admin-only reports exposing private upload URLs

Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint

Discourse non-admin moderators can exfiltrate private content via post ownership transfer

Discourse users archives leaked to users with moderation privileges

Affected Vendor

discourse

View all reports →

Affected Software

discourse

Vulnerable Versions:

< 2.8.7, < 2.9.0.beta8

Timeline

Official Publish: August 1st, 2022

Last Modified: April 23rd, 2025

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1499 Endpoint Denial of Service

T1498 Network Denial of Service

T1562 Impair Defenses

Defense Evasion

T1190 Exploit Public-Facing Application

T1046 Network Service Discovery