CVE-2022-24866

Discourse Assign is a plugin for assigning users to a topic in Discourse, an open-source messaging platform. Prior to version 1.0.1, the UserBookmarkSerializer serialized the whole User / Group object, which leaked some private information. The data was only being serialized to people who could view assignment info, which is limited to staff by default. For the vast majority of sites, this data was only leaked to trusted staff member, but for sites with assign features enabled publicly, the data was accessible to more people than just staff. Version 1.0.1 contains a patch. There are currently no known workarounds.

• CWE-200
• CWE-200

• https://github.com/discourse/discourse-assign/pull/320Issue Tracking, Patch, Third Party Advisory
• https://github.com/discourse/discourse-assign/security/advisories/GHSA-9xhf-wvjx-f5w9Third Party Advisory
• https://github.com/discourse/discourse-assign/pull/320Issue Tracking, Patch, Third Party Advisory
• https://github.com/discourse/discourse-assign/security/advisories/GHSA-9xhf-wvjx-f5w9Third Party Advisory

Published

Apr 26, 2022

Last Modified

Jun 17, 2026

Status

Modified

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