{"id":"GHSA-2gx6-7gx2-wwcf","summary":"Ghost: Cross-Site Scripting in Universal Import","details":"### Impact\n\nThe Universal Import feature in Ghost Admin failed to properly sanitize imported content resulting in XSS in post content.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v5.26.0 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### Workarounds\n\nIf upgrading immediately is not possible, avoid using the Universal Import feature.\n\n### References\n\nGhost thanks meifukun for disclosing this vulnerability responsibly.\n\n### For more information\n\nIf you have any questions or comments about this advisory, email us at [security@ghost.org](mailto:security@ghost.org).","aliases":["BIT-ghost-2026-70588","CVE-2026-70588"],"modified":"2026-08-17T08:10:43.189918385Z","published":"2026-08-04T21:03:51Z","database_specific":{"cwe_ids":["CWE-79"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2026-08-04T21:03:51Z","nvd_published_at":null},"references":[{"type":"WEB","url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-2gx6-7gx2-wwcf"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/pull/29635"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e"},{"type":"PACKAGE","url":"https://github.com/TryGhost/Ghost"},{"type":"WEB","url":"https://github.com/TryGhost/Ghost/releases/tag/v6.54.1"}],"affected":[{"package":{"name":"ghost","ecosystem":"npm","purl":"pkg:npm/ghost"},"ranges":[{"type":"SEMVER","events":[{"introduced":"5.26.0"},{"fixed":"6.54.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-2gx6-7gx2-wwcf/GHSA-2gx6-7gx2-wwcf.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:L"}]}