Stranger stands for STRing AutomatoN GEneratoR which is a string analysis tool for PHP web applications. You can use it to detect XSS, SQL Injection and MFE vulnerabilities (OWASP Top 10).
Stranger takes a PHP program as input and automatically analyzes it and outputs the possible XSS, SQLI and MFE vulnerabilities in the program. In addition to that, for each input that leads to a vulnerability, it outputs an automaton in a dot format that characterizes all possible string values for this input which may exploit the vulnerability, i.e., it outputs the vulnerability signature.

