CVE-2026-32607 | THREATINT

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, 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.

PUBLISHED Reserved 2026-03-12 | Published 2026-03-31 | Updated 2026-04-01 | Assigner GitHub_M

LOW: 2.1CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

>= 2026.1.0-latest, < 2026.1.3

affected

>= 2026.2.0-latest, < 2026.2.2

affected

>= 2026.3.0-latest, < 2026.3.0

affected

References

github.com/...course/security/advisories/GHSA-xg68-q7ff-6gqm

github.com/...ommit/46edb174e237c6e57bda9c494160da0a174fe70d

cve.org (CVE-2026-32607)

nvd.nist.gov (CVE-2026-32607)

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