{"cve":{"cve_id":"CVE-2023-49273","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":0.00369,"epss_percentile":0.28581,"epss_as_of":"2026-06-23","description":"Umbraco is an ASP.NET content management system (CMS). Starting in version 8.0.0 and prior to versions 8.18.10, 10.8.1, and 12.3.4, users with low privileges (Editor, etc.) are able to access some unintended endpoints. Versions 8.18.10, 10.8.1, and 12.3.4 contain a patch for this issue.","published_at":"2023-12-12T19:05:39.361000Z","last_modified_at":null,"cvss_v3_score":5.4,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cvss_v3_severity":"MEDIUM","cvss_v4_score":null,"cvss_v4_vector":null,"cvss_v4_severity":null,"ssvc_decision":null,"ssvc_exploitation":null,"ssvc_automatable":null,"ssvc_technical_impact":null,"cwes":["CWE-863"],"nvd_references":["https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-cfr5-7p54-4qg8"],"vuln_status":null,"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":"2026-06-24T00:09:39.878444Z","updated_at":"2026-06-28T23:21:04.001898Z"},"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":"L","value_label":"Low"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"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":"N","value_label":"None"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"umbraco","vendor_name":"umbraco","product_slug":"umbraco-cms","product_name":"Umbraco-CMS","version_start":">= 8.0.0, < 8.18.10","version_start_inclusive":true,"version_end":">= 8.0.0, < 8.18.10","version_end_inclusive":true,"cpe23_uri":"cve5:umbraco:umbraco-cms:>= 8.0.0, < 8.18.10:>= 8.0.0, < 8.18.10"},{"vendor_slug":"umbraco","vendor_name":"umbraco","product_slug":"umbraco-cms","product_name":"Umbraco-CMS","version_start":">= 9.0.0-rc001, < 10.8.1","version_start_inclusive":true,"version_end":">= 9.0.0-rc001, < 10.8.1","version_end_inclusive":true,"cpe23_uri":"cve5:umbraco:umbraco-cms:>= 9.0.0-rc001, < 10.8.1:>= 9.0.0-rc001, < 10.8.1"},{"vendor_slug":"umbraco","vendor_name":"umbraco","product_slug":"umbraco-cms","product_name":"Umbraco-CMS","version_start":">= 11.0.0-rc1, < 12.3.4","version_start_inclusive":true,"version_end":">= 11.0.0-rc1, < 12.3.4","version_end_inclusive":true,"cpe23_uri":"cve5:umbraco:umbraco-cms:>= 11.0.0-rc1, < 12.3.4:>= 11.0.0-rc1, < 12.3.4"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-cfr5-7p54-4qg8","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2023-12-12T19:05:39.361000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:30:41.329074Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:30:41.329074Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:30:41.329074Z","label":"CVSS score revised","source":"cvelistv5"}]}