Cross Site Scripting vulnerability in smpn1smg absis v.2017-10-19 and before allows a remote attacker to execute arbitrary code via the user parameter in the lock/lock.php file.
https://github.com/smpn1smg/absis
https://github.com/Chiaki2333/vulnerability/blob/main/smpn1smg-absis-XSS-lock.php-user.md
https://gist.github.com/Chiaki2333/d132c4b169b55bd7cd50e73dbe20c410