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OpenAdvisories
Medium · 4.3 CVE-2024-53266 EUVD-2024-51923

Cross-site Scripting (XSS) via topic titles when CSP disabled in Discourse

Published Feb 4, 2025 · Updated Feb 4, 2025 · Assigned by GitHub_M

Description

Discourse is an open source platform for community discussion. In affected versions with some combinations of plugins, and with CSP disabled, activity streams in the user's profile page may be vulnerable to XSS. This has been patched in the latest version of Discourse core. Users are advised to upgrade. Users unable to upgrade should ensure CSP is enabled.

Affected products

VendorProductAffectedFixed
discourse discourse stable: < 3.3.3, tests-passed: < 3.4.0.beta4 —

References