{"cve":{"cve_id":"CVE-2026-103278","is_kev":false,"kev_date_added":null,"kev_vendor_project":null,"kev_product":null,"kev_vulnerability_name":null,"kev_short_description":null,"kev_required_action":null,"kev_due_date":null,"kev_known_ransomware":null,"kev_notes":null,"kev_cwes":null,"epss_score":0.00271,"epss_percentile":0.18062,"epss_as_of":"2026-10-15","description":"Ghost versions 5.8.0 before 6.34.0 contain an input validation vulnerability in the admin iframe that allows attackers to take over staff user accounts. Attackers with content publishing privileges can craft malicious pages that, when visited by active staff users, enable account takeover through improper input validation.","published_at":"2026-10-01T10:42:15.359000Z","last_modified_at":"2026-10-01T15:17:27.100000Z","cvss_v3_score":7.3,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N","cvss_v3_severity":"HIGH","cvss_v4_score":8.5,"cvss_v4_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","cvss_v4_severity":"HIGH","ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-23"],"nvd_references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-5pxf-whwv-g54g","https://www.vulncheck.com/advisories/ghost-5.8.0-before-6.34.0-staff-account-takeover-via-admin-iframe"],"vuln_status":"Deferred","trending_score":null,"is_trending":false,"has_trended":false,"trended_number_one":false,"trending_peak_score":null,"trending_peak_rank":null,"started_trending_at":null,"trended_number_one_at":null,"summary_generated":null,"summary_generated_at":null,"summary_model":null,"created_at":"2026-10-01T11:38:54.200781Z","updated_at":"2026-10-02T11:10:38.202748Z"},"effective_severity":"HIGH","badges":[],"impact_analysis":[],"cvss_v3_decoded":{"version":"3.1","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"H","value_label":"High"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":"4.0","metrics":[{"metric":"AV","name":"Attack Vector","value":"N","value_label":"Network"},{"metric":"AC","name":"Attack Complexity","value":"L","value_label":"Low"},{"metric":"AT","name":"Attack Requirements","value":"N","value_label":"None"},{"metric":"PR","name":"Privileges Required","value":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"P","value_label":"Passive"},{"metric":"VC","name":"Confidentiality (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VI","name":"Integrity (Vulnerable System)","value":"H","value_label":"High"},{"metric":"VA","name":"Availability (Vulnerable System)","value":"N","value_label":"None"},{"metric":"SC","name":"Confidentiality (Subsequent System)","value":"N","value_label":"None"},{"metric":"SI","name":"Integrity (Subsequent System)","value":"N","value_label":"None"},{"metric":"SA","name":"Availability (Subsequent System)","value":"N","value_label":"None"}]},"affected":[{"vendor_slug":"tryghost","vendor_name":"TryGhost","product_slug":"ghost","product_name":"Ghost","version_start":"5.8.0","version_start_inclusive":true,"version_end":"6.34.0","version_end_inclusive":false,"cpe23_uri":"cve5:tryghost:ghost:5.8.0:6.34.0"},{"vendor_slug":"tryghost","vendor_name":"TryGhost","product_slug":"ghost","product_name":"Ghost","version_start":"6.34.0","version_start_inclusive":true,"version_end":"6.34.0","version_end_inclusive":true,"cpe23_uri":"cve5:tryghost:ghost:6.34.0:6.34.0"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-5pxf-whwv-g54g","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://www.vulncheck.com/advisories/ghost-5.8.0-before-6.34.0-staff-account-takeover-via-admin-iframe","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-10-01T10:42:15.359000Z","label":"CVE published","source":null}]}