Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The Timetable and Event Schedule by MotoPress WordPress plugin before 2.3.19 does not sanitise some of its parameters, which could allow low privilege users such as author to perform XSS attacks against frontend and backend users when viewing the related event/s
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.