CVE-2019-12695
MediumCVSS 6.1Exploitation Probability (EPSS)
Elevated risk61th percentile - higher than 61% of all known CVEs
Summary
A vulnerability in the Clientless SSL VPN (WebVPN) portal of Cisco Adaptive Security Appliance (ASA) and 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. The issue is due to insufficient validation of user-supplied input. An attacker could exploit this by persuading a user to click a crafted link.
Risk Assessment
A successful exploit could allow arbitrary script execution in the interface context or access to sensitive browser-based information, potentially leading to data theft or session hijacking.
Recommendation
It is recommended to upgrade ASA/FTD software to a patched version and restrict access to the WebVPN portal to trusted users only.
Original NVD description (English source)
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.