CVE-2019-12695: Cisco Adaptive Security Appliance

Medium severity, CVSS 6.1. EPSS: 1.1% chance of exploitation in the next 30 days.

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 products

• Cisco Adaptive Security Appliance: before 9.6.4.31 (fixed in 9.6.4.31)
• Cisco Adaptive Security Appliance Software: from 9.7, before 9.8.4.9 (fixed in 9.8.4.9); from 9.9, before 9.9.2.56 (fixed in 9.9.2.56); from 9.10, before 9.10.1.30 (fixed in 9.10.1.30); from 9.12, before 9.12.2.9 (fixed in 9.12.2.9); from 9.13, before 9.13.1 (fixed in 9.13.1)
• Cisco Secure Firewall Threat Defense: before 6.2.3.15 (fixed in 6.2.3.15); from 6.3.0, before 6.3.0.5 (fixed in 6.3.0.5); from 6.4.0, before 6.4.0.6 (fixed in 6.4.0.6)

Published 2019-10-02. Last modified 2026-08-11.