{"cve":"CVE-2026-70596","nvd":{"published":"2026-08-05T16:17:03.463","modified":"2026-10-24T15:10:00.190","status":"Deferred","description":"Ghost is a Node.js content management system. From 4.9.0 until 6.54.1, an input validation issue allowed any staff user to create a post with content in feature_image_caption that could be used to hijack another staff user's Ghost Admin session, resulting in privilege escalation. This issue is fixed in 6.54.1.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L","score":4.3},"cwes":["CWE-79"],"references":["https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e","https://github.com/TryGhost/Ghost/pull/29635","https://github.com/TryGhost/Ghost/releases/tag/v6.54.1","https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv"],"products":[],"source":"nvd","synced_at":"2026-10-24T16:53:34.184483516+00:00"},"epss":{"cve":"CVE-2026-70596","score":0.00318,"percentile":0.24461,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-pr22-p9rp-2cqv","url":"https://osv.dev/vulnerability/GHSA-pr22-p9rp-2cqv","summary":"Ghost: Cross-Site Scripting in Feature Image Captions","modified":"2026-08-17T08:11:00.520920144Z","packages":[{"ecosystem":"npm","name":"ghost","purl":"pkg:npm/ghost","ranges":[">=4.9.0 <6.54.1"],"fixed":["6.54.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}