{"id":"GHSA-pr22-p9rp-2cqv","revision":"35961f5d301b40619d77b82e6261f46c","records":[{"revision":"35961f5d301b40619d77b82e6261f46c","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-pr22-p9rp-2cqv","aliases":["BIT-ghost-2026-70596","CVE-2026-70596"],"title":"Ghost: Cross-Site Scripting in Feature Image Captions","description":"### Impact\n\nAn input validation issue allowed any staff user to create a post with content that could be used to hijack another staff user's Ghost Admin session resulting in privilege escalation.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v4.9.0 up to v6.54.0.\n\n### Patches\n\nv6.54.1 contains a fix for this issue.\n\n### How to update\n\nFor self-hosters using Docker, find [Docker's official Ghost image here](https://hub.docker.com/_/ghost). Updating a Docker-based Ghost instance [is documented here](https://docs.ghost.org/install/docker#updating-ghost). \n\nIf your Ghost is a Ghost-CLI install see our documentation on [updating it to the latest version here](https://docs.ghost.org/update). \n\n### References\n\nGhost thanks Versa for disclosing this vulnerability responsibly.\n\n### For more information\n\nIf you have any questions or comments about this advisory, email Ghost at [security@ghost.org](mailto:security@ghost.org).","state":0,"publishedAt":"2026-08-05T14:40:15+00:00","modifiedAt":"2026-08-17T08:11:00.5209201+00:00","affected":[{"ecosystem":"npm","name":"ghost","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"4.9.0"},{"kind":"fixed","version":"6.54.1"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv","https://github.com/TryGhost/Ghost/pull/29635","https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e","https://github.com/TryGhost/Ghost","https://github.com/TryGhost/Ghost/releases/tag/v6.54.1"],"sourceUrl":"https://github.com/advisories/GHSA-pr22-p9rp-2cqv","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-pr22-p9rp-2cqv","identifiers":["GHSA-pr22-p9rp-2cqv","BIT-ghost-2026-70596","CVE-2026-70596"]},"retained":false,"historicalAffected":[]}],"coverage":[]}