This is a web service written in spring. Use vulnerabilities to obtain flags.

dreamschool, a school community for all schools around the world Hello! I am DreamSchool, which manages a community for all schools from elementary school to university 💙 I heard that something strange is happening on Dream University's secret bulletin board, but the board is locked, so I can't even see it as an administrator 😢 Be sure to find out what's happening at Dream University!

cat loves cats

Find vulnerabilities and earn flags. Flags /flag can be obtained by running. This issue is for experienced web hackers.

I picked up the turtle in front of my house and put it in the fishing port, but the next day I saw it and it disappeared. “The fishing port is tall... how did they get out of it?”

I ruined the sociolinguistics exam... Somebody help me!! The flag format is 4TH3N3{...} Fixed a typo in the flag.

I love xss. I love script

I found someone's test site. Please find out the secrets of the site! +Uppercase filtering has been added.

One day, Swap found a special letter service! Special You need special permission to decipher a letter! ~ swap: Hmm... Please help Swap to seize VIP rights and decipher the letter.

My web challenges writeups in Patriot CTF 2025.