{"answers":{"affected":"It affects 2 products.","exploited":"Yes. Attackers have exploited CVE-2020-3580 in the wild since at least 3 Nov 2021, including in ransomware campaigns.","fix":"No fix has been published for CVE-2020-3580 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 3 May 2022.","what":"CVE-2020-3580 is a medium-severity cross-site scripting vulnerability in Cisco Adaptive Security Appliance Software, published on 21 Oct 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2020-3580 and fix it if it is affected.\n\nWhat it is: CVE-2020-3580 is a medium-severity cross-site scripting vulnerability in Cisco Adaptive Security Appliance Software, published on 21 Oct 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: Yes. Attackers have exploited CVE-2020-3580 in the wild since at least 3 Nov 2021, including in ransomware campaigns.\n\nAffected product: Cisco Adaptive Security Appliance Software. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2020-3580/ (Markdown: https://insights.sbomify.com/CVE-2020-3580/index.md)","id":"CVE-2020-3580","markdown":"https://insights.sbomify.com/CVE-2020-3580/index.md","name":"CVE-2020-3580","record":{"aliases":["GHSA-rr9h-g433-576p"],"analysis":{"component_type":"network_device","fix_type":"patch","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Cisco ASA/FTD","requires_auth":"none","summary":"Unauthenticated remote attackers can execute arbitrary script code or access sensitive browser-based information via crafted links in Cisco ASA/FTD web interfaces.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[{"product":"adaptive_security_appliance_software","vendor":"cisco"},{"product":"secure_firewall_threat_defense","vendor":"cisco"}],"cvss":{"score":6.1,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2021-06-25","github_poc":4,"max_poc_stars":19,"metasploit":0,"nuclei":1,"refs":[{"date":"2021-06-28T06:51:26Z","kind":"github_poc","ref":"https://github.com/adarshvs/CVE-2020-3580","stars":19,"title":"Automated bulk IP or domain scanner for CVE 2020 3580. Cisco ASA and FTD XSS hunter."},{"date":"2021-06-25T04:39:30Z","kind":"github_poc","ref":"https://github.com/Hudi233/CVE-2020-3580","stars":9,"title":null},{"date":"2022-07-15T00:11:29Z","kind":"github_poc","ref":"https://github.com/catatonicprime/CVE-2020-3580","stars":2,"title":"Additional exploits for XSS in Cisco ASA devices discovered by PTSwarm"},{"date":"2022-06-24T02:16:05Z","kind":"github_poc","ref":"https://github.com/cruxN3T/CVE-2020-3580","stars":0,"title":"Cisco ASA XSS CVE-2020-3580"},{"date":null,"kind":"nuclei","ref":"http/cves/2020/CVE-2020-3580.yaml","stars":null,"title":"Cisco ASA/FTD Software - Cross-Site Scripting"}],"tier":"exploited"},"has_fix":null,"headline":"Cisco ASA and FTD Cross-Site Scripting (XSS)","id":"CVE-2020-3580","indexable":true,"kev":{"dateAdded":"2021-11-03","dueDate":"2022-05-03","knownRansomwareCampaignUse":"Known","product":"Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)","requiredAction":"Apply updates per vendor instructions.","vendorProject":"Cisco","vulnerabilityName":"Cisco ASA and FTD Cross-Site Scripting (XSS) Vulnerability"},"kind":"cve","links":{"ecosystem":null,"product":"cisco:adaptive_security_appliance_software","products":["cisco:adaptive_security_appliance_software","cisco:secure_firewall_threat_defense"],"type":"xss","year":"2020"},"n_packages":0,"n_references":1,"next":{"headline":"Cross-site scripting in Cisco Adaptive Security Appliance (ASA) Software","id":"CVE-2020-3581"},"packages":[],"prev":{"headline":"Cisco SD-WAN vManage Software Cross-Site Scripting Vulnerability","id":"CVE-2020-3579"},"products":["Cisco Adaptive Security Appliance (ASA) Software"],"published":"2020-10-21","related":[{"cvss_score":9.9,"headline":"Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Buffer Overflow","id":"CVE-2025-20333","kev_date_added":"2025-09-25","published":"2025-09-25"},{"cvss_score":8.8,"headline":"Cisco Adaptive Security Appliance (ASA) SNMP Buffer Overflow","id":"CVE-2016-6366","kev_date_added":"2022-05-24","published":"2016-08-18"},{"cvss_score":8.6,"headline":"Cisco Secure Firewall Adaptive Security Appliance (ASA) and Secure Firewall Threat Defense (FTD) Heap Inspection","id":"CVE-2026-20349","kev_date_added":"2026-08-11","published":"2026-08-11"},{"cvss_score":8.6,"headline":"Cisco ASA and FTD Denial of Service","id":"CVE-2024-20353","kev_date_added":"2024-04-24","published":"2024-04-24"},{"cvss_score":7.8,"headline":"Cisco Adaptive Security Appliance (ASA) CLI Remote Code Execution","id":"CVE-2016-6367","kev_date_added":"2022-05-24","published":"2016-08-18"},{"cvss_score":7.5,"headline":"Cisco ASA and FTD Read-Only Path Traversal","id":"CVE-2020-3452","kev_date_added":"2021-11-03","published":"2020-07-22"},{"cvss_score":7.5,"headline":"Cisco ASA and FTD Information Disclosure","id":"CVE-2020-3259","kev_date_added":"2024-02-15","published":"2020-05-06"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"open","licence":"CC0 1.0","name":"CISA KEV"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"no","exploitation":"active","technical_impact":"partial"},"state":"PUBLISHED","updated":"2025-10-21","vendors":["Cisco"]},"summary":"Unauthenticated remote attackers can execute arbitrary script code or access sensitive browser-based information via crafted links in Cisco ASA/FTD web interfaces.","url":"https://insights.sbomify.com/CVE-2020-3580/"}