CVE-2026-57447 Details
Description
Discourse Doc Categories is a plugin for organizing Discourse topics as documentation. Prior to the verified source fix, the doc category index refresh resolves linked titles for private messages or restricted category topics without enforcing the viewer's authorization. A user who can edit the index topic can use this behavior to learn titles that the user is not authorized to view, although the advisory does not establish access to topic contents. This vulnerability is addressed by commit b15d4de02ad29d7c9525346afee51fef4a2c605a.
A vulnerability in the Discourse Doc Categories plugin allows users with permission to edit the doc category index topic to access titles of private messages or topics in restricted categories, without proper authorization. This issue arises because the index refresh process does not consider the viewer's permissions when resolving linked titles. While the vulnerability does not grant access to the actual content of the topics, it could be exploited to gather sensitive information about private discussions or restricted topics.
Users are advised to upgrade to the patched version of the Discourse Doc Categories plugin, once available.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 16, 2026CISA-ADP
Assessed Oct 16, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/discourse/discourse-doc-categories/commit/b15d4de02ad29d7c9525346afee51fef4a2c605a | [email protected] | Source CodeVendor |
| https://github.com/discourse/discourse-doc-categories/security/advisories/GHSA-x63p-48vw-8r64 | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Discourse Doc Categories | >= 0 |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 16, 2026 | CVE Modified | CISA-ADP |
| Oct 16, 2026 | New CVE Received | [email protected] |
Volerion