{"history":[{"alert":0,"cve":"CVE-2020-3580","id":22065,"kind":"epss","observed_at":1794500401,"payload":"{\"date\": \"2026-11-12\", \"epss\": 0.85575, \"percentile\": 0.99727}"},{"alert":0,"cve":"CVE-2020-3580","id":19683,"kind":"epss","observed_at":1794327601,"payload":"{\"date\": \"2026-11-10\", \"epss\": 0.85575, \"percentile\": 0.99726}"},{"alert":0,"cve":"CVE-2020-3580","id":17649,"kind":"epss","observed_at":1794241201,"payload":"{\"date\": \"2026-11-09\", \"epss\": 0.85575, \"percentile\": 0.99726}"},{"alert":0,"cve":"CVE-2020-3580","id":15713,"kind":"epss","observed_at":1794154800,"payload":"{\"date\": \"2026-11-08\", \"epss\": 0.85575, \"percentile\": 0.99726}"},{"alert":0,"cve":"CVE-2020-3580","id":13691,"kind":"epss","observed_at":1794068402,"payload":"{\"date\": \"2026-11-07\", \"epss\": 0.85575, \"percentile\": 0.99725}"},{"alert":0,"cve":"CVE-2020-3580","id":11473,"kind":"epss","observed_at":1793982001,"payload":"{\"date\": \"2026-11-06\", \"epss\": 0.85575, \"percentile\": 0.99725}"},{"alert":1,"cve":"CVE-2020-3580","id":9355,"kind":"cna","observed_at":1793938800,"payload":"{\"containers\": {\"adp\": [{\"providerMetadata\": {\"dateUpdated\": \"2024-08-04T07:37:55.605Z\", \"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\"}, \"references\": [{\"name\": \"20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\", \"x_transferred\"], \"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe\"}], \"title\": \"CVE Program Container\"}, {\"metrics\": [{\"other\": {\"content\": {\"id\": \"CVE-2020-3580\", \"options\": [{\"Exploitation\": \"active\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"role\": \"CISA Coordinator\", \"timestamp\": \"2024-11-08T16:07:33.171667Z\", \"version\": \"2.0.3\"}, \"type\": \"ssvc\"}}, {\"other\": {\"content\": {\"dateAdded\": \"2021-11-03\", \"reference\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580\"}, \"type\": \"kev\"}}], \"providerMetadata\": {\"dateUpdated\": \"2025-10-21T23:35:34.486Z\", \"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\"}, \"references\": [{\"tags\": [\"government-resource\"], \"url\": \"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2021-11-03T00:00:00.000Z\", \"value\": \"CVE-2020-3580 added to CISA KEV\"}], \"title\": \"CISA ADP Vulnrichment\"}], \"cna\": {\"affected\": [{\"product\": \"Cisco Adaptive Security Appliance (ASA) Software\", \"vendor\": \"Cisco\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"datePublic\": \"2020-10-21T00:00:00.000Z\", \"descriptions\": [{\"lang\": \"en\", \"value\": \"Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.\"}], \"metrics\": [{\"cvssV3_1\": {\"attackComplexity\": \"LOW\", \"attackVector\": \"NETWORK\", \"availabilityImpact\": \"NONE\", \"baseScore\": 6.1, \"baseSeverity\": \"MEDIUM\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"scope\": \"CHANGED\", \"userInteraction\": \"REQUIRED\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\", \"version\": \"3.1\"}}], \"problemTypes\": [{\"descriptions\": [{\"cweId\": \"CWE-79\", \"description\": \"CWE-79\", \"lang\": \"en\", \"type\": \"CWE\"}]}], \"providerMetadata\": {\"dateUpdated\": \"2020-10-21T18:40:26.000Z\", \"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\"}, \"references\": [{\"name\": \"20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities\", \"tags\": [\"vendor-advisory\", \"x_refsource_CISCO\"], \"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe\"}], \"source\": {\"advisory\": \"cisco-sa-asaftd-xss-multiple-FCB3vPZe\", \"defect\": [[\"CSCvu44910\", \"CSCvu75581\", \"CSCvu83309\", \"CSCvv13835\"]], \"discovery\": \"INTERNAL\"}, \"title\": \"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities\", \"x_legacyV4Record\": {\"CVE_data_meta\": {\"ASSIGNER\": \"psirt@cisco.com\", \"DATE_PUBLIC\": \"2020-10-21T16:00:00\", \"ID\": \"CVE-2020-3580\", \"STATE\": \"PUBLIC\", \"TITLE\": \"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities\"}, \"affects\": {\"vendor\": {\"vendor_data\": [{\"product\": {\"product_data\": [{\"product_name\": \"Cisco Adaptive Security Appliance (ASA) Software\", \"version\": {\"version_data\": [{\"version_value\": \"n/a\"}]}}]}, \"vendor_name\": \"Cisco\"}]}}, \"data_format\": \"MITRE\", \"data_type\": \"CVE\", \"data_version\": \"4.0\", \"description\": {\"description_data\": [{\"lang\": \"eng\", \"value\": \"Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.\"}]}, \"exploit\": [{\"lang\": \"en\", \"value\": \"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.\"}], \"impact\": {\"cvss\": {\"baseScore\": \"6.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N\", \"version\": \"3.0\"}}, \"problemtype\": {\"problemtype_data\": [{\"description\": [{\"lang\": \"eng\", \"value\": \"CWE-79\"}]}]}, \"references\": {\"reference_data\": [{\"name\": \"20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities\", \"refsource\": \"CISCO\", \"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe\"}]}, \"source\": {\"advisory\": \"cisco-sa-asaftd-xss-multiple-FCB3vPZe\", \"defect\": [[\"CSCvu44910\", \"CSCvu75581\", \"CSCvu83309\", \"CSCvv13835\"]], \"discovery\": \"INTERNAL\"}}}}, \"cveMetadata\": {\"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"assignerShortName\": \"cisco\", \"cveId\": \"CVE-2020-3580\", \"datePublished\": \"2020-10-21T18:40:26.821Z\", \"dateReserved\": \"2019-12-12T00:00:00.000Z\", \"dateUpdated\": \"2025-10-21T23:35:34.486Z\", \"state\": \"PUBLISHED\"}, \"dataType\": \"CVE_RECORD\", \"dataVersion\": \"5.1\"}"},{"alert":0,"cve":"CVE-2020-3580","id":9219,"kind":"epss","observed_at":1793895600,"payload":"{\"date\": \"2026-11-05\", \"epss\": 0.85575, \"percentile\": 0.99725}"},{"alert":0,"cve":"CVE-2020-3580","id":7007,"kind":"epss","observed_at":1793809200,"payload":"{\"date\": \"2026-11-04\", \"epss\": 0.85575, \"percentile\": 0.99725}"},{"alert":0,"cve":"CVE-2020-3580","id":4784,"kind":"epss","observed_at":1793722800,"payload":"{\"date\": \"2026-11-03\", \"epss\": 0.85575, \"percentile\": 0.99724}"},{"alert":0,"cve":"CVE-2020-3580","id":2566,"kind":"epss","observed_at":1793665375,"payload":"{\"date\": \"2026-11-02\", \"epss\": 0.85575, \"percentile\": 0.99724}"},{"alert":1,"cve":"CVE-2020-3580","id":1535,"kind":"kev","observed_at":1793665375,"payload":"{\"cveID\": \"CVE-2020-3580\", \"cwes\": [\"CWE-79\"], \"dateAdded\": \"2021-11-03\", \"dueDate\": \"2022-05-03\", \"forensicTriage\": \"No\", \"knownRansomwareCampaignUse\": \"Known\", \"notes\": \"https://nvd.nist.gov/vuln/detail/CVE-2020-3580\", \"product\": \"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)\", \"requiredAction\": \"Apply updates per vendor instructions.\", \"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.\", \"vendorProject\": \"Cisco\", \"vulnerabilityName\": \"Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability\"}"}],"record":{"affected":[{"product":"Cisco Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"n/a"}]}],"cna":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2024-08-04T07:37:55.605Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"name":"20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities","tags":["vendor-advisory","x_refsource_CISCO","x_transferred"],"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe"}],"title":"CVE Program Container"},{"metrics":[{"other":{"content":{"id":"CVE-2020-3580","options":[{"Exploitation":"active"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2024-11-08T16:07:33.171667Z","version":"2.0.3"},"type":"ssvc"}},{"other":{"content":{"dateAdded":"2021-11-03","reference":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580"},"type":"kev"}}],"providerMetadata":{"dateUpdated":"2025-10-21T23:35:34.486Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"references":[{"tags":["government-resource"],"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580"}],"timeline":[{"lang":"en","time":"2021-11-03T00:00:00.000Z","value":"CVE-2020-3580 added to CISA KEV"}],"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"Cisco Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"n/a"}]}],"datePublic":"2020-10-21T00:00:00.000Z","descriptions":[{"lang":"en","value":"Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section."}],"exploits":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","description":"CWE-79","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2020-10-21T18:40:26.000Z","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","shortName":"cisco"},"references":[{"name":"20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities","tags":["vendor-advisory","x_refsource_CISCO"],"url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe"}],"source":{"advisory":"cisco-sa-asaftd-xss-multiple-FCB3vPZe","defect":[["CSCvu44910","CSCvu75581","CSCvu83309","CSCvv13835"]],"discovery":"INTERNAL"},"title":"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities","x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"psirt@cisco.com","DATE_PUBLIC":"2020-10-21T16:00:00","ID":"CVE-2020-3580","STATE":"PUBLIC","TITLE":"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Cisco Adaptive Security Appliance (ASA) Software","version":{"version_data":[{"version_value":"n/a"}]}}]},"vendor_name":"Cisco"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section."}]},"exploit":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."}],"impact":{"cvss":{"baseScore":"6.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.0"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-79"}]}]},"references":{"reference_data":[{"name":"20201021 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities","refsource":"CISCO","url":"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe"}]},"source":{"advisory":"cisco-sa-asaftd-xss-multiple-FCB3vPZe","defect":[["CSCvu44910","CSCvu75581","CSCvu83309","CSCvv13835"]],"discovery":"INTERNAL"}}}},"cveMetadata":{"assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","assignerShortName":"cisco","cveId":"CVE-2020-3580","datePublished":"2020-10-21T18:40:26.821Z","dateReserved":"2019-12-12T00:00:00.000Z","dateUpdated":"2025-10-21T23:35:34.486Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.1"},"cna_checked":1794457201,"cve":"CVE-2020-3580","description":"Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct cross-site scripting (XSS) attacks against a user of the web services interface of an affected device. The vulnerabilities are due to insufficient validation of user-supplied input by the web services interface of an affected device. An attacker could exploit these vulnerabilities by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface or allow the attacker to access sensitive, browser-based information. Note: These vulnerabilities affect only specific AnyConnect and WebVPN configurations. For more information, see the Vulnerable Products section.","epss":{"date":"2026-11-12","epss":0.85575,"percentile":0.99727},"epss_checked":1794522003,"first_seen":1793665375,"kev":{"cveID":"CVE-2020-3580","cwes":["CWE-79"],"dateAdded":"2021-11-03","dueDate":"2022-05-03","forensicTriage":"No","knownRansomwareCampaignUse":"Known","notes":"https://nvd.nist.gov/vuln/detail/CVE-2020-3580","product":"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)","requiredAction":"Apply updates per vendor instructions.","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.","vendorProject":"Cisco","vulnerabilityName":"Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability"},"kev_checked":1794522003,"products":"Cisco Cisco Adaptive Security Appliance (ASA) Software","references":["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe","https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580"],"score":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","provider":"cisco","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"solutions":"","state":"PUBLISHED","title":"Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting Vulnerabilities","updated_at":1794500401,"workarounds":""},"sources":[]}