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Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')


Severity Medium
Score 6.1/10


An Improper Neutralization of Script-Related HTML Tags in Fortinet FortiAnalyzer 5.6.0 and below and FortiManager 5.6.0 and below allows an attacker to send DHCP request containing malicious scripts in the HOSTNAME parameter. The malicious script code is executed while viewing the logs in FortiAnalyzer and FortiManager (with FortiAnalyzer feature enabled).

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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.


Advisory Timeline

  • Published