Discourse <2026.1.3/2.2/3.0 XSS via hidden prioritize_full_name_in_ux
CVE-2026-32607 Published on March 31, 2026
Discourse: Stored XSS via unescaped assignee name
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, when the hidden prioritize_full_name_in_ux site setting is enabled (defaults to false, requires console access to change), user and group display names are rendered without HTML escaping in several assignment-related UI paths. This allows users with assign permission to inject arbitrary HTML/JavaScript that executes in the browser of any user viewing an affected topic. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-32607 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-32607
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Affected Versions
discourse:- Version >= 2026.1.0-latest, < 2026.1.3 is affected.
- Version >= 2026.2.0-latest, < 2026.2.2 is affected.
- Version >= 2026.3.0-latest, < 2026.3.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.