Amirmohammad Safari

**Name of the Vulnerable Software and Affected Versions** Apache Tomcat versions 11.0.0-M1 through 11.0.22 Apache Tomcat versions 10.1.0-M1 through 10.1.55 Apache Tomcat versions 9.0.0.M1 through 9.0.118 Apache Tomcat versions 8.5.0 through 8.5.100 Apache Tomcat versions 7.0.0 through 7.0.109 **Description** Cross-Site Scripting (XSS) occurs in the number guess example application due to improper neutralization of script-related HTML tags in a web page. XSS is a flaw that allows an attacker to inject malicious scripts into content delivered to other users. **Recommendations** Upgrade versions 11.0.0-M1 through 11.0.22 to 11.0.23. Upgrade versions 10.1.0-M1 through 10.1.55 to 10.1.56. Upgrade versions 9.0.0.M1 through 9.0.118 to 9.0.119.