Riskcovery

CVE-2026-20070

Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense Software VPN Web Services Cross-Site Scripting Vulnerability

State
Published
Severity
6.1 Medium
Published
Mar 4, 2026
Updated
Mar 4, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

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 a link to a malicious website that is designed to submit malicious input to the affected application. A successful exploit could allow the attacker to execute arbitrary HTML or script code in the browser in the context of the VPN web server.

Scores

CVSSScoreVectorSource
3.16.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Ncisco

Weaknesses

  • CWE-80 Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Affected Products

ProductVersions
Cisco Secure Firewall Adaptive Security Appliance (ASA) SoftwareCisco
  • 9.12.3Affected
  • 9.12.1Affected
  • 9.12.2Affected
  • 9.12.4Affected
  • 9.12.3.2Affected
  • 9.12.3.7Affected
  • 9.12.2.5Affected
  • 9.12.3.12Affected
  • 9.12.1.3Affected
  • 9.12.2.4Affected
  • 9.12.1.2Affected
  • 9.12.2.9Affected
  • 9.12.3.9Affected
  • 9.12.2.1Affected
  • 9.12.4.2Affected
  • 9.12.4.4Affected
  • 9.12.4.7Affected
  • 9.12.4.8Affected
  • 9.12.4.10Affected
  • 9.12.4.13Affected
  • 9.12.4.18Affected
  • 9.12.4.24Affected
  • 9.16.1Affected
  • 9.12.4.26Affected
  • 9.16.1.28Affected
  • and 136 more versions
Cisco Secure Firewall Threat Defense (FTD) SoftwareCisco
  • 6.4.0.1Affected
  • 6.4.0.2Affected
  • 6.4.0.5Affected
  • 6.4.0Affected
  • 6.4.0.3Affected
  • 6.4.0.4Affected
  • 6.4.0.6Affected
  • 6.4.0.7Affected
  • 6.4.0.8Affected
  • 6.4.0.9Affected
  • 6.4.0.10Affected
  • 6.4.0.11Affected
  • 6.4.0.12Affected
  • 7.0.0Affected
  • 7.0.0.1Affected
  • 7.0.1Affected
  • 7.1.0Affected
  • 6.4.0.13Affected
  • 7.0.1.1Affected
  • 6.4.0.14Affected
  • 7.1.0.1Affected
  • 7.0.2Affected
  • 6.4.0.15Affected
  • 7.2.0Affected
  • 7.0.2.1Affected
  • and 50 more versions

References

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