{"action":"Upgrade ghost to 6.37.0 or later.","affected":[{"fixed":"6.37.0","introduced":"4.0.0"}],"component":"ghost","cve_ids":["CVE-2026-53943"],"ecosystem":"npm","epss":0.00446,"exploited":false,"fixed_versions":["6.37.0"],"ghsa_id":"GHSA-62q6-4hv4-vjrw","id":"tcs_01M5KF57HGE3FCM1F6WDS9A5W7","modified_at":"2026-07-01T22:26:11.695985301Z","published_at":"2026-07-01T21:58:32Z","references":["https://osv.dev/vulnerability/GHSA-62q6-4hv4-vjrw","https://github.com/TryGhost/Ghost/security/advisories/GHSA-62q6-4hv4-vjrw","https://nvd.nist.gov/vuln/detail/CVE-2026-53943","https://github.com/TryGhost/Ghost"],"severity":{"label":"critical","score":9.6},"sources":[{"source":"osv","source_id":"GHSA-62q6-4hv4-vjrw","url":"https://osv.dev/vulnerability/GHSA-62q6-4hv4-vjrw"}],"summary":"Ghost: Cache-poisoning XSS in Ghost frontend via x-ghost-preview header"}