Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
A remote attacker with write access to PI ProcessBook files could inject code that is imported into OSIsoft PI Vision 2020 versions prior to 3.5.0. Unauthorized information disclosure, modification, or deletion is also possible if a victim views or interacts with the infected display. This vulnerability affects PI System data and other data accessible with victim’s user permissions.
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.