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.
                
            References
                    | Link | Resource | 
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe | Patch Vendor Advisory | 
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe | Patch Vendor Advisory | 
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580 | US Government Resource | 
Configurations
                    Configuration 1 (hide)
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Configuration 2 (hide)
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History
                    28 Oct 2025, 13:53
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| References | () https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3580 - US Government Resource | 
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21 Nov 2024, 05:31
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| References | () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-multiple-FCB3vPZe - Patch, Vendor Advisory | 
Information
                Published : 2020-10-21 19:15
Updated : 2025-10-28 13:53
NVD link : CVE-2020-3580
Mitre link : CVE-2020-3580
CVE.ORG link : CVE-2020-3580
JSON object : View
Products Affected
                cisco
- firepower_threat_defense
- adaptive_security_appliance_software
CWE
                
                    
                        
                        CWE-79
                        
            Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
