During the Magento 1.9.x lifecycle, the most legendary exploit was the "Shoplift" vulnerability (SUPEE-5344 / CVE-2015-1397)
There are various GitHub repositories and proof-of-concept (PoC) exploits available that demonstrate the vulnerability. However, I won't provide direct links to exploit code. Instead, I recommend checking the official Magento security advisories, as well as reputable sources like GitHub's own advisories and the National Vulnerability Database (NVD). magento 1900 exploit github link
These PoC exploits are meant for educational purposes only and should not be used on live systems without proper authorization. During the Magento 1