{"cve":{"cve_id":"CVE-2026-42562","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":0.00261,"epss_percentile":0.17198,"epss_as_of":"2026-06-23","description":"Plainpad is a self hosted note taking app. Prior to version 1.1.1, Plainpad allows a low-privilege authenticated user to self-escalate to administrator by submitting admin=true in PUT /api.php/v1/users/{id}. The endpoint directly persists the admin attribute from user input, and the escalated account can immediately access admin-only routes. This issue has been patched in version 1.1.1.","published_at":"2026-05-09T19:09:48.862000Z","last_modified_at":null,"cvss_v3_score":8.3,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","cvss_v3_severity":"HIGH","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-269"],"nvd_references":["https://github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6","https://github.com/alextselegidis/plainpad/issues/138","https://github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc","https://github.com/alextselegidis/plainpad/releases/tag/1.1.1"],"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":"2026-06-28T23:30:20.145142Z"},"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":"N","value_label":"None"},{"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":"L","value_label":"Low"}]},"cvss_v4_decoded":{"version":null,"metrics":[]},"affected":[{"vendor_slug":"alextselegidis","vendor_name":"alextselegidis","product_slug":"plainpad","product_name":"plainpad","version_start":"< 1.1.1","version_start_inclusive":true,"version_end":"< 1.1.1","version_end_inclusive":true,"cpe23_uri":"cve5:alextselegidis:plainpad:< 1.1.1:< 1.1.1"}],"exploit_refs":[],"news":[],"references":[{"url":"https://github.com/alextselegidis/plainpad/security/advisories/GHSA-pvfv-wvpm-q6f6","source_type":"VENDOR_ADVISORY","tags":["advisory"]},{"url":"https://github.com/alextselegidis/plainpad/issues/138","source_type":"MISC","tags":[]},{"url":"https://github.com/alextselegidis/plainpad/commit/9216a876d27b22c3d9259551636d803f7cb075fc","source_type":"PATCH","tags":["patch"]},{"url":"https://github.com/alextselegidis/plainpad/releases/tag/1.1.1","source_type":"PATCH","tags":["patch"]}],"timeline":[{"type":"published","at":"2026-05-09T19:09:48.862000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:54:12.493575Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:12.493575Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:54:12.493575Z","label":"CVSS score revised","source":"cvelistv5"}]}