Challenges

200pt
This service provides JSON encoding.
https://json.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://json.canhack.me/tester
300pt
This service provides convert BBCode to HTML.
https://bbcode.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://bbcode.canhack.me/tester
This service provides convert text to uppercase.
https://uppercase.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://uppercase.canhack.me/tester
300pt
This service provides Caesar cipher.
https://caesar.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://caesar.canhack.me/tester
This service provides convert text to uppercase.
https://uppercase2.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://uppercase2.canhack.me/tester
This service provides convert text to lowercase.
https://lowercase.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://lowercase.canhack.me/tester
This service provides redirection to URL.
https://redirect.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://redirect.canhack.me/tester
This service provides redirection to URL.
https://redirect2.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://redirect2.canhack.me/tester
This service provides search plaintext for MD5 hashes.
You can use wildcard characters such as the asterisk (*) and question mark (?).
https://md5table.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://md5table.canhack.me/tester
This service provides redirection to URL.
https://redirect3.canhack.me/

If you find a vulnerability, capture the flag via the URL below.
https://redirect3.canhack.me/tester
Currently opened 14 challenges.