CVE-2026-55790

Summary of CVE-2026-55790 (Craft CMS) : This is a DOM-based cross-site scripting flaw in Craft CMS. Versions affected are 5.0.0-RC1–5.9.22 and 4.0.0-RC1–4.17.15. An attacker with only a GitHub account can insert a JavaScript payload into a craftcms/cms issue title. When a Craft admin uses the Cra...