Reflected Cross-Site Scripting (XSS) Vulnerabilities on Scriptcase

I scanned the scriptcase app with Qualys Scan (Vulnerability scan management) and I see Level 5 security vulnerability: Reflected Cross-Site Scripting (XSS) Vulnerabilities How to fix these Vulnerabilities?

Cross Site Scripting (Reflected XSS) Demo

Reflected Cross-Site Scripting and Secure code review

Grid export function affected by Reflected Cross-Site Scripting

How to perform various cross-site scripting attacks

Reflected Cross-site scripting (XSS) on semrush.com redirect (bug

Types of XSS (Cross-site Scripting)

Reflected XSS Attack - Prevention of Non-Persistent XSS

10 Practical scenarios for XSS attacks

Dissecting Cross-Site Scripting (Reflected)

Securing Web Applications, Part 3. Cross Site Scripting Attacks

What Is Cross Site Scripting and How to Prevent Cross Site

Reflected Cross-Site Scripting (XSS) Vulnerabilities on Scriptcase

What Is Persistent XSS

scriptcase.de Cross Site Scripting vulnerability OBB-2923045