{"containers": {"cna": {"affected": [{"product": "Cisco Adaptive Security Appliance", "vendor": "n/a", "versions": [{"status": "affected", "version": "Cisco Adaptive Security Appliance"}]}], "datePublic": "2018-04-19T00:00:00", "descriptions": [{"lang": "en", "value": "A vulnerability in the Web Server Authentication Required screen of the Clientless Secure Sockets Layer (SSL) VPN portal of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of that portal on an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. 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