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CVE-2026-20070

A vulnerability in the VPN web services component of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a browser that is accessing an affected device.  This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by persuading a user to follow
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:56b1f9c1ffd2436b67a94a23a4e1ecc340dd3e039ba1cb76f368cd33e31b8e17
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unknown","product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"6.4.0.1"},{"status":"affected","version":"6.4.0.2"},{"status":"affected","version":"6.4.0.5"},{"status":"affected","version":"6.4.0"},{"status":"affected","version":"6.4.0.3"},{"status":"affected","version":"6.4.0.4"},{"status":"affected","version":"6.4.0.6"},{"status":"affected","version":"6.4.0.7"},{"status":"affected","version":"6.4.0.8"},{"status":"affected","version":"6.4.0.9"},{"status":"affected","version":"6.4.0.10"},{"status":"affected…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6e959889f53af43fdaf784fca5bfeb8a126ca84007f94bc4f0d7d84e0ea55a3 · sha256:656eb6147eda5d60… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"9.12.3"},{"status":"affected","version":"9.12.1"},{"status":"affected","version":"9.12.2"},{"status":"affected","version":"9.12.4"},{"status":"affected","version":"9.12.3.2"},{"status":"affected","version":"9.12.3.7"},{"status":"affected","version":"9.12.2.5"},{"status":"affected","version":"9.12.3.12"},{"status":"affected","version":"9.12.1.3"},{"status":"affected","version":"9.12.2.4"},{"status":"affected","version":"9.12.1.2"},{…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6e959889f53af43fdaf784fca5bfeb8a126ca84007f94bc4f0d7d84e0ea55a3 · sha256:656eb6147eda5d60… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"unknown","product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"6.4.0.1"},{"status":"affected","version":"6.4.0.2"},{"status":"affected","version":"6.4.0.5"},{"status":"affected","version":"6.4.0"},{"status":"affected","version":"6.4.0.3"},{"status":"affected","version":"6.4.0.4"},{"status":"affected","version":"6.4.0.6"},{"status":"affected","version":"6.4.0.7"},{"status":"affected","version":"6.4.0.8"},{"status":"affected","version":"6.4.0.9"},{"status":"affected","version":"6.4.0.10"},{"status":"affected…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6e959889f53af43fdaf784fca5bfeb8a126ca84007f94bc4f0d7d84e0ea55a3 · sha256:656eb6147eda5d60… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"Cisco Secure Firewall Adaptive Security Appliance (ASA) Software","vendor":"Cisco","versions":[{"status":"affected","version":"9.12.3"},{"status":"affected","version":"9.12.1"},{"status":"affected","version":"9.12.2"},{"status":"affected","version":"9.12.4"},{"status":"affected","version":"9.12.3.2"},{"status":"affected","version":"9.12.3.7"},{"status":"affected","version":"9.12.2.5"},{"status":"affected","version":"9.12.3.12"},{"status":"affected","version":"9.12.1.3"},{"status":"affected","version":"9.12.2.4"},{"status":"affected","version":"9.12.1.2"},{…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f6e959889f53af43fdaf784fca5bfeb8a126ca84007f94bc4f0d7d84e0ea55a3 · sha256:656eb6147eda5d60… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"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"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f6e959889f53af43fdaf784fca5bfeb8a126ca84007f94bc4f0d7d84e0ea55a3 · sha256:656eb6147eda5d60… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-80","description":"Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f6e959889f53af43fdaf784fca5bfeb8a126ca84007f94bc4f0d7d84e0ea55a3 · sha256:656eb6147eda5d60… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"cisco-sa-asaftd-webvpn-xss-uwjc4HR","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-webvpn-xss-uwjc4HR"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f6e959889f53af43fdaf784fca5bfeb8a126ca84007f94bc4f0d7d84e0ea55a3 · sha256:656eb6147eda5d60… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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