Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
A vulnerability, which was classified as problematic, was found in SourceCodester Garage Management System 1.0. Affected is an unknown function of the file /php_action/createUser.php. The manipulation of the argument userName with the input lala<img src="" onerror=alert(1)> leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used.
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.