6.1Medium

Cisco Adaptive Security Appliance

CVE-2019-12695

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.

What this means for your business

  • It affects Cisco Adaptive Security Appliance. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it remotely, over a network, without a login, but only after tricking someone into an action such as opening a file or a link.

What to do

  1. 1Check whether your company or your suppliers run Cisco Adaptive Security Appliance, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Scoring

CVSS
6.1 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-79
Assigned by
psirt@cisco.com

Dates

Published
2019-10-02
Last modified
2026-08-11
Sources
NVD

Affected products

  • Cisco Adaptive Security Appliance- 9.6.4.31
  • Cisco Adaptive Security Appliance Software9.7 - 9.8.4.9, 9.9 - 9.9.2.56, 9.10 - 9.10.1.30, 9.12 - 9.12.2.9, 9.13 - 9.13.1
  • Cisco Asa 5505all versions
  • Cisco Asa 5510all versions
  • Cisco Asa 5512-Xall versions
  • Cisco Asa 5515-Xall versions
  • Cisco Asa 5520all versions
  • Cisco Asa 5525-Xall versions
  • Cisco Asa 5550all versions
  • Cisco Asa 5555-Xall versions
  • Cisco Asa 5580all versions
  • Cisco Asa 5585-Xall versions

As listed in the NVD configuration data. Not a statement about your estate.

References