---
id: CVE-2019-12695
title: >-
  A vulnerability in the Clientless SSL VPN (WebVPN) portal of Cisco Adaptive
  Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) Software
  could allow an unauthenticated, remote attacker to conduct a cross-site
  scripting (XSS…
summary: >-
  A vulnerability in the Clientless SSL VPN (WebVPN) portal of Cisco Adaptive
  Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) Software
  could allow an unauthenticated, remote attacker to conduct a cross-site
  scripting (XSS…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-79
  - CWE-79
vendor: cisco
product: adaptive_security_appliance
affected:
  - adaptive_security_appliance < 9.6.4.31
  - 'adaptive_security_appliance_software >= 9.7, < 9.8.4.9'
  - 'adaptive_security_appliance_software >= 9.9, < 9.9.2.56'
  - 'adaptive_security_appliance_software >= 9.10, < 9.10.1.30'
  - 'adaptive_security_appliance_software >= 9.12, < 9.12.2.9'
  - 'adaptive_security_appliance_software >= 9.13, < 9.13.1'
  - secure_firewall_threat_defense < 6.2.3.15
  - 'secure_firewall_threat_defense >= 6.3.0, < 6.3.0.5'
  - 'secure_firewall_threat_defense >= 6.4.0, < 6.4.0.6'
patched:
  - adaptive_security_appliance 9.6.4.31
  - adaptive_security_appliance_software 9.13.1
  - secure_firewall_threat_defense 6.4.0.6
published: '2019-10-02'
updated: '2026-08-11'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2019-12695'
references:
  - url: >-
      https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-xss
    label: psirt@cisco.com
  - url: >-
      https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-xss
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
epss: 0.01057
epssPercentile: 0.62941
ingestedAt: '2026-08-11T19:48:27.011Z'
---

## Overview

A vulnerability in the Clientless SSL VPN (WebVPN) portal of Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of an affected device. An attacker could exploit this vulnerability 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.

## Affected

- `adaptive_security_appliance < 9.6.4.31`
- `adaptive_security_appliance_software >= 9.7, < 9.8.4.9`
- `adaptive_security_appliance_software >= 9.9, < 9.9.2.56`
- `adaptive_security_appliance_software >= 9.10, < 9.10.1.30`
- `adaptive_security_appliance_software >= 9.12, < 9.12.2.9`
- `adaptive_security_appliance_software >= 9.13, < 9.13.1`
- `secure_firewall_threat_defense < 6.2.3.15`
- `secure_firewall_threat_defense >= 6.3.0, < 6.3.0.5`
- `secure_firewall_threat_defense >= 6.4.0, < 6.4.0.6`

## Remediation

Upgrade past the affected range:

- `adaptive_security_appliance 9.6.4.31`
- `adaptive_security_appliance_software 9.13.1`
- `secure_firewall_threat_defense 6.4.0.6`