{"id":"CVE-2026-53949","revision":null,"records":[{"revision":"c5a0ada99e92487e88daa24ab59b1ecf","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-53949","aliases":[],"title":"Ghost Content API filter bypass reveals private fields","description":"Ghost is a Node.js content management system. From 5.46.1 until 6.21.2, the validation applied to filters on the public API endpoints could be partially bypassed, making it possible to reveal private fields via a brute force attack. If SQLite was used as the database password hashes were fully accessible. If MySQL was used as the database the password hashes' case (uppercase / lowercase) would have been lost, which would likely have rendered a further brute force attack on the discovered hashes fruitless. This vulnerability is fixed in 6.21.2.","state":0,"publishedAt":"2026-06-24T18:05:29.1+00:00","modifiedAt":"2026-06-24T18:55:24.041+00:00","affected":[{"ecosystem":"Vendor product","name":"Ghost","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"TryGhost\",\n                    \"product\": \"Ghost\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 5.46.1, < 6.21.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-jx35-x7fj-vgpr"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53949","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-53949","identifiers":["CVE-2026-53949"]},"retained":false,"historicalAffected":[]},{"revision":"cb6288d94ad04f719fb6f330babfcca6","observedAt":"2026-11-07T12:28:05.675+00:00","statement":{"source":"euvd","id":"EUVD-2026-39020","aliases":["CVE-2026-53949","GHSA-jx35-x7fj-vgpr"],"title":"Ghost is a Node.js content management system. 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This vulnerability is fixed in 6.21.2.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":null}],"references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-jx35-x7fj-vgpr"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-39020","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 24, 2026, 6:05:29 PM","dateUpdated":"Jun 24, 2026, 6:55:24 PM"},"relatedAdvisories":[],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-39020","identifiers":["EUVD-2026-39020","CVE-2026-53949","GHSA-jx35-x7fj-vgpr"]},"retained":false,"historicalAffected":[]},{"revision":"dcef8e4726e543bdbc7efe93bbcee614","observedAt":"2026-10-27T14:13:29.239+00:00","statement":{"source":"nvd","id":"CVE-2026-53949","aliases":[],"title":"Ghost is a Node.js content management system. From 5.46.1 until 6.21.2, the validation applied to filters on the public API endpoints could be partially bypassed, making it possible to reveal private fields via a brute force attack. If SQLi…","description":"Ghost is a Node.js content management system. From 5.46.1 until 6.21.2, the validation applied to filters on the public API endpoints could be partially bypassed, making it possible to reveal private fields via a brute force attack. If SQLite was used as the database password hashes were fully accessible. If MySQL was used as the database the password hashes' case (uppercase / lowercase) would have been lost, which would likely have rendered a further brute force attack on the discovered hashes fruitless. This vulnerability is fixed in 6.21.2.","state":0,"publishedAt":"2026-06-24T19:17:12.58+00:00","modifiedAt":"2026-10-25T22:10:00.15+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":5.3,"severity":"MEDIUM"}],"references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-jx35-x7fj-vgpr"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-53949","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-200","CWE-693"],"productCriteria":[],"sourceDates":{"published":"2026-06-24T19:17:12.580","lastModified":"2026-10-25T22:10:00.150"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-53949","identifiers":["CVE-2026-53949"]},"retained":false,"historicalAffected":[]},{"revision":"c0a1e4b4bb0d4bbebef1e8dc339f8fc8","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-jx35-x7fj-vgpr","aliases":["BIT-ghost-2026-53949","CVE-2026-53949"],"title":"Ghost Content API filter bypass reveals private fields","description":"### Impact\n\nThe validation applied to filters on the public API endpoints could be partially bypassed, making it possible to reveal private fields via a brute force attack. If SQLite was used as the database password hashes were fully accessible. If MySQL was used as the database the password hashes' case (uppercase / lowercase) would have been lost, which would likely have rendered a further brute force attack on the discovered hashes fruitless.\n\n### Vulnerable versions\n\nThis vulnerability is present in Ghost from v5.46.1 up to v6.21.1.\n\n### Patches\n\nv6.21.2 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, block or filter requests to Content API endpoints where the `filter` query parameter contains `password` or `email` (including any compound form such as `users.password`, `users.email`, `authors.password`, `authors.email`). Reject requests at a reverse proxy / WAF layer before they reach Ghost.\n\nExample (case-insensitive) pattern to block on the raw querystring:\n\n```\nfilter=[^&]*(password|email)\n```\n\n### References\n\nGhost thanks crnkovic 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":"2026-08-05T14:42:47+00:00","modifiedAt":"2026-08-05T14:45:20.4999882+00:00","affected":[{"ecosystem":"npm","name":"ghost","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"5.46.1"},{"kind":"fixed","version":"6.21.2"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"MODERATE"}],"references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-jx35-x7fj-vgpr","https://nvd.nist.gov/vuln/detail/CVE-2026-53949","https://github.com/TryGhost/Ghost","https://github.com/TryGhost/Ghost/releases/tag/v6.21.2"],"sourceUrl":"https://github.com/advisories/GHSA-jx35-x7fj-vgpr","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-jx35-x7fj-vgpr","identifiers":["GHSA-jx35-x7fj-vgpr","BIT-ghost-2026-53949","CVE-2026-53949"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-c5a2504558b549559b8658a653596391","complete":true,"records":13633,"lastAttemptAt":"2026-11-07T20:19:26.3099435+00:00","lastSuccessAt":"2026-11-07T20:19:26.304+00:00","error":null,"lastVerifiedAt":"2026-11-07T20:19:26.304+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13685,"expectedIdentifiers":13685,"failedIdentifiers":0},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. 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