This video shows the lab solution of "" from Web Security Academy (Portswigger)
Link to the lab: https://portswigger.net/web-security/deserialization/exploiting/lab-deserialization-modifying-serialized-objects
Write-Up: https://github.com/s0mm3r/wsa_writeups/blob/master/insecure-deserialization/1-lab.md
