{"cve":{"cve_id":"CVE-2023-39991","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":0.00324,"epss_percentile":0.23986,"epss_as_of":"2026-06-23","description":"Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Blindside Networks BigBlueButton plugin <= 3.0.0-beta.4 versions.","published_at":"2023-09-04T10:12:51.120000Z","last_modified_at":null,"cvss_v3_score":7.1,"cvss_v3_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L","cvss_v3_severity":"HIGH","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://patchstack.com/database/vulnerability/bigbluebutton/wordpress-bigbluebutton-plugin-3-0-0-beta-4-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve"],"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":"2026-06-29T01:35:19.624544Z"},"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":"N","value_label":"None"},{"metric":"UI","name":"User Interaction","value":"R","value_label":"Required"},{"metric":"S","name":"Scope","value":"C","value_label":"Changed"},{"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":"blindside-networks","vendor_name":"Blindside Networks","product_slug":"bigbluebutton","product_name":"BigBlueButton","version_start":"n/a","version_start_inclusive":true,"version_end":"3.0.0-beta.4","version_end_inclusive":true,"cpe23_uri":"cve5:blindside-networks:bigbluebutton:n/a:3.0.0-beta.4"}],"exploit_refs":[],"news":[],"references":[{"url":"https://patchstack.com/database/vulnerability/bigbluebutton/wordpress-bigbluebutton-plugin-3-0-0-beta-4-reflected-cross-site-scripting-xss-vulnerability?_s_id=cve","source_type":"MISC","tags":[]}],"timeline":[{"type":"published","at":"2023-09-04T10:12:51.120000Z","label":"CVE published","source":null},{"type":"cvss_changed","at":"2026-06-28T17:29:28.891979Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:29:28.891979Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"cvss_changed","at":"2026-06-28T17:29:28.891979Z","label":"CVSS score revised","source":"cvelistv5"},{"type":"ssvc_changed","at":"2026-06-29T01:35:19.624544Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:35:19.624544Z","label":"SSVC decision revised","source":"vulnrichment"},{"type":"ssvc_changed","at":"2026-06-29T01:35:19.624544Z","label":"SSVC decision revised","source":"vulnrichment"}]}