{"id":"CVE-2026-103271","aliases":["BIT-ghost-2026-103271","EUVD-2026-90664","GHSA-2fr8-wvwh-rx7v","GHSA-rcx7-6m7p-xw5c"],"status":"published","title":"Ghost 4.0.0 before 6.63.0 Restricted Content Bypass","description":"Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00379,"percentile":0.32098,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-863"],"published":"2026-10-01T10:42:10Z","modified":"2026-10-28T02:31:05Z","fixes":[{"ecosystem":"Bitnami","package":"ghost","fixed_in":["6.63.0"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"ghost","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"6.63.0"}]}]}],"products":[{"vendor":"tryghost","product":"ghost"}],"references":[{"url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-rcx7-6m7p-xw5c","tags":["vendor-advisory","web","advisory"]},{"url":"https://www.vulncheck.com/advisories/ghost-4.0.0-before-6.63.0-restricted-content-bypass","tags":["third-party-advisory","web","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-103271","tags":["web","advisory"]},{"url":"https://github.com/advisories/GHSA-2fr8-wvwh-rx7v"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/103xxx/CVE-2026-103271.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-103271","title":"Ghost 4.0.0 before 6.63.0 Restricted Content Bypass","description":"Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.","status":"published","published":"2026-10-01T10:42:10.427Z","modified":"2026-10-06T00:10:32.485Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T13:34:37.420074Z"}],"euvd":[{"id":"EUVD-2026-90664","description":"Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.","status":"published","published":"2026-10-01T10:42:10Z","modified":"2026-10-06T00:10:32Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:27:39.05741Z"}],"ghsa":[{"id":"GHSA-2fr8-wvwh-rx7v","title":"Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows...","description":"Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.","status":"published","published":"2026-10-01T12:31:17Z","modified":"2026-10-01T12:31:23Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:12:39.998127Z"}],"nvd":[{"id":"CVE-2026-103271","description":"Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.","status":"published","published":"2026-10-01T11:17:22.407Z","modified":"2026-10-06T01:16:33.043Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:53.097633Z"}],"osv":[{"id":"CVE-2026-103271","title":"Ghost 4.0.0 before 6.63.0 Restricted Content Bypass","description":"Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.","status":"published","published":"2026-10-01T10:42:10.427Z","modified":"2026-10-28T02:31:05.839217756Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:44:54.236592Z"},{"id":"BIT-ghost-2026-103271","title":"Ghost 4.0.0 before 6.63.0 Restricted Content Bypass","description":"Ghost versions from 4.0.0 before 6.63.0 contain a content API vulnerability that allows unauthenticated visitors to access gated post content. Attackers can bypass content restrictions by directly querying the content API to retrieve restricted posts without authentication.","status":"published","published":"2026-10-09T10:44:49.293Z","modified":"2026-10-09T12:10:49.219363771Z","updated_at":"2026-11-02T15:28:29.999658Z"}]}}
