{"schema_version":"1","data":[{"id":3524,"advisory_id":"cb477501-6b57-4da7-969f-5244b6504f95","revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-3580","source_published_at":"2021-11-03T00:00:00+00:00","published_at":"2026-10-24T21:36:27.127457+00:00","extraction_method":"structured","technologies":["adaptive-security-appliance-asa-and-firepower-threat-defense-ftd","core-kev"],"cve_ids":["CVE-2020-3580"],"event_types":["advisory"],"payload":{"kind":"advisory","title":"Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability","summary":"Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an insufficient input validation vulnerability for user-supplied input by the web services interface. Successful exploitation could allow an attacker to perform cross-site scripting (XSS) in the context of the interface or access sensitive browser-based information. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2020-3580","products":[{"name":{"value":"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2020-3580","aliases":["CVE-2020-3580"],"affected":[],"modified":"2021-11-03T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-79"],"cveID":"CVE-2020-3580","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-3580","dueDate":"2022-05-03","product":"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)","dateAdded":"2021-11-03","vendorProject":"Cisco","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain an insufficient input validation vulnerability for user-supplied input by the web services interface.  Successful exploitation could allow an attacker to perform cross-site scripting (XSS) in the context of the interface or access sensitive browser-based information.","vulnerabilityName":"Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability","knownRansomwareCampaignUse":"Known"}},"related_cves":[{"value":"CVE-2020-3580","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null}}],"next_after":3524,"next_before":3524}