openSIS 9.1 - SQL injection (Authenticated) Vulnerability

Exploit Title: openSIS 9.1 - SQLi Authenticated Google Dork: intext:"openSIS is a product" Exploit Author: Devrim Dıragumandan d0ub1edd Vendor Homepage: https://www.os4ed.com/ Software Link: https://github.com/OS4ED/openSIS-Classic/releases/tag/V9.1 Version: 9.1 Tested on: Linux A SQL injection...