CVE-2026-55424

CVE-2026-55424 – Discourse topic featured link stored XSS . Discourse (open-source discussion platform) prior to versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5 allowed a mis-normalized/undescoped topic feature link to inject JavaScript when default Content Security Policy protections were mo...

CVE-2026-55424

Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, a topic "featured link" was not sufficiently normalized and escaped before being rendered in the topic list, allowing a user who can set a featured link to inject JavaScript when default Content...