Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Multiple cross-site scripting (XSS) vulnerabilities in open.php in eTicket 1.5.5 and 18.104.22.168, when register_globals is enabled, allow remote attackers to inject arbitrary web script or HTML via the (1) err and (2) warn parameters. NOTE: the vendor disputes the significance of the issue, stating that "eTicket is not designed to work with register_globals On."
CWE-79 - Cross Site Scripting
Cross-Site Scripting, commonly referred to as XSS, is the most dominant class of vulnerabilities. It allows an attacker to inject malicious code into a pregnable web application and victimize its users. The exploitation of such a weakness can cause severe issues such as account takeover, and sensitive data exfiltration. Because of the prevalence of XSS vulnerabilities and their high rate of exploitation, it has remained in the OWASP top 10 vulnerabilities for years.