Cross-site scripting (XSS) vulnerability in the GlobalProtect internal and external gateway interface in Palo Alto Networks PAN-OS before 6.1.18 7.0.x before 7.0.17 7.1.x before 7.1.12 and 8.0.x before 8.0.3 allows remote attackers to inject arbitrary web script or HTML via vectors related to improper request parameter validation.