{"cve":{"cve_id":"CVE-2023-24540","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":0.0156,"epss_percentile":0.73389,"epss_as_of":"2026-08-26","description":"Not all valid JavaScript whitespace characters are considered to be whitespace. Templates containing whitespace characters outside of the character set \"\\t\\n\\f\\r\\u0020\\u2028\\u2029\" in JavaScript contexts that also contain actions may not be properly sanitized during execution.","published_at":"2023-05-11T15:29:31.947000Z","last_modified_at":null,"cvss_v3_score":9.8,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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-77"],"nvd_references":["https://go.dev/issue/59721","https://go.dev/cl/491616","https://groups.google.com/g/golang-announce/c/MEb0UyuSMsU","https://pkg.go.dev/vuln/GO-2023-1752"],"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":"2026-06-28T23:19:31.042990Z"},"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":"H","value_label":"High"},{"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":"go-standard-library","vendor_name":"Go standard library","product_slug":"html-template","product_name":"html/template","version_start":"0","version_start_inclusive":true,"version_end":"1.19.9","version_end_inclusive":false,"cpe23_uri":"cve5:go-standard-library:html-template:0:1.19.9"},{"vendor_slug":"go-standard-library","vendor_name":"Go standard library","product_slug":"html-template","product_name":"html/template","version_start":"1.20.0-0","version_start_inclusive":true,"version_end":"1.20.4","version_end_inclusive":false,"cpe23_uri":"cve5:go-standard-library:html-template:1.20.0-0:1.20.4"}],"exploit_refs":[],"news":[],"references":[{"url":"https://go.dev/issue/59721","source_type":"MISC","tags":[]},{"url":"https://go.dev/cl/491616","source_type":"MISC","tags":[]},{"url":"https://groups.google.com/g/golang-announce/c/MEb0UyuSMsU","source_type":"MISC","tags":[]},{"url":"https://pkg.go.dev/vuln/GO-2023-1752","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2023-05-11T15:29:31.947000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:27:07.118971Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:27:07.118971Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:27:07.118971Z","label":"CVSS score revised","source":"cvelistv5"}]}