BIT-DISCOURSE-2026-33395 Discourse has stored click‑based XSS via Graphviz SVG javascript: links

Discourse is an open-source discussion platform. Prior to versions 2026.3.0, 2026.2.1, and 2026.1.2, the discourse-graphviz plugin contains a stored cross-site scripting XSS vulnerability that allows authenticated users to inject malicious JavaScript code through DOT graph definitions. For...