{"action":"Upgrade craftcms/cms to 4.17.12 or later.","affected":[{"fixed":"4.17.12","introduced":"4.0.0"},{"fixed":"5.9.18","introduced":"5.0.0"}],"component":"craftcms/cms","cve_ids":["CVE-2026-44011"],"ecosystem":"Packagist","epss":0.0062,"exploited":false,"fixed_versions":["4.17.12","5.9.18"],"ghsa_id":"GHSA-qrgm-p9w5-rrfw","id":"tcs_01M5KF7JXS3WVDWVKH5RPD44J0","modified_at":"2026-05-13T16:46:24.793017Z","published_at":"2026-05-06T17:54:06Z","references":["https://osv.dev/vulnerability/GHSA-qrgm-p9w5-rrfw","https://github.com/craftcms/cms/security/advisories/GHSA-255j-qw47-wjh5","https://github.com/craftcms/cms/security/advisories/GHSA-qrgm-p9w5-rrfw","https://nvd.nist.gov/vuln/detail/CVE-2026-44011","https://github.com/craftcms/cms/commit/ab85ca7f5f926994f723f60584054a1f4c4c5de3","https://github.com/craftcms/cms"],"severity":{"label":"high"},"sources":[{"source":"osv","source_id":"GHSA-qrgm-p9w5-rrfw","url":"https://osv.dev/vulnerability/GHSA-qrgm-p9w5-rrfw"}],"summary":"Craft CMS has Potential Authenticated Remote Code Execution via Malicious Attached Behavior"}