Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
In Apache Archiva before 2.2.4, it may be possible to store malicious XSS code into central configuration entries, i.e. the logo URL. The vulnerability is considered as minor risk, as only users with admin role can change the configuration, or the communication between the browser and the Archiva server must be compromised.
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.