{"action":"Upgrade ghost to 6.21.1 or later.","affected":[{"fixed":"6.21.1","introduced":"6.19.4"}],"component":"ghost","cve_ids":["CVE-2026-53948"],"ecosystem":"npm","epss":0.00226,"exploited":false,"fixed_versions":["6.21.1"],"ghsa_id":"GHSA-944x-pm95-3jpr","id":"tcs_01M5KFEP6K5TDV1S6H1CB7B3G8","modified_at":"2026-08-04T21:15:19.787379123Z","published_at":"2026-08-04T21:05:39Z","references":["https://osv.dev/vulnerability/GHSA-944x-pm95-3jpr","https://github.com/TryGhost/Ghost/security/advisories/GHSA-944x-pm95-3jpr","https://nvd.nist.gov/vuln/detail/CVE-2026-53948","https://github.com/TryGhost/Ghost/pull/26751","https://github.com/TryGhost/Ghost/commit/d659e752d6636144d75b9aa94062cdbc88a16b21","https://github.com/TryGhost/Ghost","https://github.com/TryGhost/Ghost/releases/tag/v6.21.1"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GHSA-944x-pm95-3jpr","url":"https://osv.dev/vulnerability/GHSA-944x-pm95-3jpr"}],"summary":"Ghost: File Upload Content-Type Spoofing"}