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<?php // We didn't check $_POST['password'], it could be anything the user wanted! For example: $username = 'aidan'; $password = "' OR ''='"; // Query database to check if there are any matching users $query = "SELECT * FROM users WHERE user='{$_POST['username']}' AND password='{$_POST['password']}'"; // This means the query sent to MySQL would be: echo $query; ?>
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined array key "username" in /in/i3Ded on line 7 Warning: Undefined array key "password" in /in/i3Ded on line 7 SELECT * FROM users WHERE user='' AND password=''
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined array key "username" in /in/i3Ded on line 7 Warning: Undefined array key "password" in /in/i3Ded on line 7 SELECT * FROM users WHERE user='' AND password=''
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: username in /in/i3Ded on line 7 Notice: Undefined index: password in /in/i3Ded on line 7 SELECT * FROM users WHERE user='' AND password=''
Output for 7.3.32 - 7.3.33
SELECT * FROM users WHERE user='' AND password=''
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined index: username in /in/i3Ded on line 7 Notice: Undefined index: password in /in/i3Ded on line 7 SELECT * FROM users WHERE user='' AND password=''
preferences:
192.31 ms | 402 KiB | 311 Q