Description

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, an authorization bypass in the Category Chatables Controller show action allowed moderators to get information on hidden groups names and user count. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

INFO

Published Date :

2026-03-31T17:42:00.882Z

Last Modified :

2026-04-01T18:34:16.767Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-33300 vulnerability.

Vendors Products
Discourse
  • Discourse
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-33300.

URL Resource
https://github.com/discourse/discourse/commit/07f66658cce81a099a0d7115db5f3c69f5d3cca2 cve-icon cve-icon
https://github.com/discourse/discourse/security/advisories/GHSA-wrwm-vqx2-6x4v cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact