Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
AntiSamy is a library for performing fast, configurable cleansing of HTML coming from untrusted sources. There is a potential for a mutation XSS (mXSS) vulnerability in AntiSamy caused by flawed parsing of the HTML being sanitized. To be subject to this vulnerability the "preserveComments" directive must be enabled in your policy file. As a result, certain crafty inputs can result in elements in comment tags being interpreted as executable when using AntiSamy's sanitized output. This affects org.owasp.antisamy:antisamy versions prior to 1.7.5 and org.htmlunit:neko-htmlunit versions prior to 3.11.1.
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.