{"id":"BIT-ghost-2026-70596","summary":"Ghost: Cross-Site Scripting in Feature Image Captions","details":"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.","aliases":["CVE-2026-70596","GHSA-pr22-p9rp-2cqv"],"modified":"2026-08-17T08:11:00.520920144Z","published":"2026-08-17T05:41:07.465Z","database_specific":{"cpes":["cpe:2.3:a:ghost:ghost:*:*:*:*:*:node.js:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/pull/29635"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/releases/tag/v6.54.1"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-70596"}],"affected":[{"package":{"name":"ghost","ecosystem":"Bitnami","purl":"pkg:bitnami/ghost"},"ranges":[{"type":"SEMVER","events":[{"introduced":"4.9.0"},{"fixed":"6.54.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/ghost/BIT-ghost-2026-70596.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L"}]}],"schema_version":"1.9.0"}