The solution "Your current access request contains illegal characters and has been rejected by the system" appeared on the discuz forum

discuzWhat should I do when a forum site publishes a post or searches,"Your current access request contains illegal characters and has been rejected by the system" appears? After careful analysis, it was found that such an error prompt appeared when special symbols (,/,, etc.) appeared in the published body content. As shown in the following figure:

solutions

The main reason is that the security check in the configuration file of the discuz forum is related to it. The problem can be solved by modifying the configuration file of the discuz site, config/config_global.php, and disabling the security check.

Use the ftp tool to download the config_global.php file locally and open it with an editor. Locate to:

// ------------------------- CONFIG SECURITY -------------------------- //

$_config['security']['authkey'] = 'udp350ptajkj';

$_config['security']['urlxssdefend'] = 1;

$_config['security']['attackevasive'] = '0';

$_config['security']['querysafe']['status'] = 1;

find

$_config['security']['urlxssdefend'] = 1;

put

$_config['security']['urlxssdefend'] = 1;

changed to

$_config['security']['urlxssdefend'] ='0';

That is, the following number 1 is changed to 0, and finally the problem can be solved by overwriting the upload using the ftp tool.