CVE-2026-33411

Published March 20th, 2026

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CVSS v3

5.4

MEDIUM

CVSS v2

N/A

Affected

PROJECT

Description

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a potential stored XSS in topic titles for the solved posts stream. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, ensure that the Content Security Policy is enabled, and has not been modified in a way which would make it more vulnerable to XSS attacks.

discourse/discourse

A platform for community discussion. Free, open, simple.

GitHub

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