{"action":"Upgrade craftcms/cms to 4.17.0-beta.1 or later.","affected":[{"fixed":"5.9.0-beta.1","introduced":"5.0.0-RC1"},{"fixed":"4.17.0-beta.1","introduced":"4.0.0-RC1"}],"component":"craftcms/cms","cve_ids":["CVE-2026-28784"],"ecosystem":"Packagist","epss":0.0055,"exploited":false,"fixed_versions":["5.9.0-beta.1","4.17.0-beta.1"],"ghsa_id":"GHSA-qc86-q28f-ggww","id":"tcs_01M5KF76WKJHPWXFNVMSNQP6F7","modified_at":"2026-03-04T18:46:31.617473Z","published_at":"2026-03-03T21:06:41Z","references":["https://osv.dev/vulnerability/GHSA-qc86-q28f-ggww","https://github.com/craftcms/cms/security/advisories/GHSA-qc86-q28f-ggww","https://nvd.nist.gov/vuln/detail/CVE-2026-28784","https://github.com/craftcms/cms/pull/18208","https://craftcms.com/knowledge-base/securing-craft#set-allowAdminChanges-to-false-in-production","https://github.com/craftcms/cms"],"severity":{"label":"medium"},"sources":[{"source":"osv","source_id":"GHSA-qc86-q28f-ggww","url":"https://osv.dev/vulnerability/GHSA-qc86-q28f-ggww"}],"summary":"Craft CMS has potential authenticated Remote Code Execution via Twig SSTI"}