Bugku CTF web13（Web）

0. Open the web page and find that let us view the source code

1. Open with firefox browser, press F12 to view the source code

function checkSubmit(){var a=document.getElementById("password");if("undefined"!=typeof a){if("67d709b2b54aa2aa648cf6e87a7114f1"==a.value)return!0;alert("Error");a.focus();return!1}}document.getElementById("levelQuest").οnsubmit=checkSubmit;

 There is a string that resembles a flag, maybe something we need to submit

2. Enter 67d709b2b54aa2aa648cf6e87a7114f1 and submit

3. Get the flag: flag{458baf75e57df00570786a83afc59dc8}