{"cve":{"cve_id":"CVE-2026-70596","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":0.0018,"epss_percentile":0.07728,"epss_as_of":"2026-09-15","description":"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.","published_at":"2026-08-05T14:40:12.295000Z","last_modified_at":"2026-09-08T20:51:43.490000Z","cvss_v3_score":4.3,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:L","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":"none","ssvc_automatable":false,"ssvc_technical_impact":"partial","cwes":["CWE-79"],"nvd_references":["https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv","https://github.com/TryGhost/Ghost/pull/29635","https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e","https://github.com/TryGhost/Ghost/releases/tag/v6.54.1"],"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":"2026-08-05T15:40:38.287526Z","updated_at":"2026-09-09T05:37:24.294436Z"},"effective_severity":"MEDIUM","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":"H","value_label":"High"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"L","value_label":"Low"},{"metric":"I","name":"Integrity","value":"L","value_label":"Low"},{"metric":"A","name":"Availability","value":"L","value_label":"Low"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"tryghost","vendor_name":"TryGhost","product_slug":"ghost","product_name":"Ghost","version_start":">= 4.9.0, < 6.54.1","version_start_inclusive":true,"version_end":">= 4.9.0, < 6.54.1","version_end_inclusive":true,"cpe23_uri":"cve5:tryghost:ghost:>= 4.9.0, < 6.54.1:>= 4.9.0, < 6.54.1"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/TryGhost/Ghost/security/advisories/GHSA-pr22-p9rp-2cqv","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/TryGhost/Ghost/pull/29635","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/TryGhost/Ghost/commit/a8bea3a4ceec4c852b880f4885119453c3d8588e","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/TryGhost/Ghost/releases/tag/v6.54.1","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-08-05T14:40:12.295000Z","label":"CVE published","source":null},{"type":"ssvc_changed","at":"2026-08-05T18:41:38.287605Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-05T18:41:38.287605Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-08-05T18:41:38.287605Z","label":"SSVC decision revised","source":"vulnrichment"}]}