{"cve":{"cve_id":"CVE-2026-44542","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":0.00523,"epss_percentile":0.40205,"epss_as_of":"2026-06-23","description":"FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-stable and 1.3.9-beta, attacker-controlled path input is joined with a trusted base path prior to sanitization, allowing traversal sequences (e.g., ../) to escape the intended shared directory. As a result, an unauthenticated attacker possessing a valid public share hash with delete permissions enabled can delete arbitrary files outside the shared directory within the share owner’s configured storage scope. This affects public/api/resources and public/api/resources/bulk. This vulnerability is fixed in 1.3.1-stable and 1.3.9-beta.","published_at":"2026-05-14T17:07:30.602000Z","last_modified_at":null,"cvss_v3_score":9.1,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","cvss_v3_severity":"CRITICAL","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-22"],"nvd_references":["https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-fwj3-42wh-8673"],"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":"2026-06-28T23:30:29.004056Z"},"effective_severity":"CRITICAL","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":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"N","value_label":"None"},{"metric":"S","name":"Scope","value":"U","value_label":"Unchanged"},{"metric":"C","name":"Confidentiality","value":"N","value_label":"None"},{"metric":"I","name":"Integrity","value":"H","value_label":"High"},{"metric":"A","name":"Availability","value":"H","value_label":"High"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"gtsteffaniak","vendor_name":"gtsteffaniak","product_slug":"filebrowser","product_name":"filebrowser","version_start":"< 1.3.1-stable","version_start_inclusive":true,"version_end":"< 1.3.1-stable","version_end_inclusive":true,"cpe23_uri":"cve5:gtsteffaniak:filebrowser:< 1.3.1-stable:< 1.3.1-stable"},{"vendor_slug":"gtsteffaniak","vendor_name":"gtsteffaniak","product_slug":"filebrowser","product_name":"filebrowser","version_start":"< 1.3.9-beta","version_start_inclusive":true,"version_end":"< 1.3.9-beta","version_end_inclusive":true,"cpe23_uri":"cve5:gtsteffaniak:filebrowser:< 1.3.9-beta:< 1.3.9-beta"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-fwj3-42wh-8673","source_type":"VENDOR_ADVISORY","tags":["advisory"]}],"timeline":[{"type":"published","at":"2026-05-14T17:07:30.602000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:29.867911Z","label":"CVSS score revised","source":"cvelistv5"}]}