CVE-2026-27154

CVSS Score & Metrics

Base Score

6.1 / 10

Vector String

                                        CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N                                    

Vulnerability Description

Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, a user full name can be evaluated as raw HTML when the following settings are set: `display_name_on_posts` => true; and `prioritize_username_in_ux` => false. Editing a post of a malicious user would trigger an XSS. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the issue. No known workarounds are available.

Vulnerability Details

Published Date

February 26, 2026

Last Modified

March 02, 2026

CWE ID

CWE-79

Source

NVD

Vendor

discourse

Product

discourse

External References

https://github.com/discourse/discourse/security/advisories/GHSA-xv43-5gcp-wgw8

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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