PHP利用PCRE回溯次数限制绕过某些安全限制 学习博客PHP利用PCRE回溯次数限制绕过某些安全限制 | 离别歌 12345678<?phpfunction is_php($data){ return preg_match('/<\?.*[(`;?>].*/is', $data); }if(!is_php($input)) { // fwrite($f, $ 2026-09-19 Web安全 #PHP #PCRE #正则表达式 #CTF
Hello World Welcome to Hexo! This is your very first post. Check documentation for more info. If you get any problems when using Hexo, you can find the answer in troubleshooting or you can ask me on GitHub. Quick 2026-07-14