✍️ Description

In the repo online invoicing system i found a stored xss which gets exploited on unpaid invoice view which is lead by client name.

🕵️‍♂️ Proof of Concept

Video POC: https://drive.google.com/file/d/1e_mTPPkSgGXM6XllelCrsdTYhhXMGCGb/view?usp=sharing

Steps to reproduce:
1. Add a client with name xss"'><img src=x onerror=alert(1111)>
2. Save and then go to unpaid invoices.
3. Add a unpaid invoice and select the client we added before.
4. Save and you will see XSS pop-up

💥 Impact

This vulnerability is capable of Stored XSS