--- a/bug_report.php	2018-02-10 21:29:27.000000000 +0100
+++ b/bug_report.php	2018-03-03 15:04:19.622499678 +0100
@@ -149,6 +149,17 @@
 	access_ensure_project_level( config_get( 'update_bug_assign_threshold' ) );
 }
 
+# begin captcha check for anon user
+if ( current_user_is_anonymous() && get_gd_version() > 0 ) {
+  $f_captcha = gpc_get_string( 'captcha', '' );
+  $f_captcha = utf8_strtolower( trim( $f_captcha ) );
+
+  $t_securimage = new Securimage();
+  if( $t_securimage->check( $f_captcha ) == false ) {
+    trigger_error( ERROR_SIGNUP_NOT_MATCHING_CAPTCHA, ERROR );
+  }
+}
+
 # if a profile was selected then let's use that information
 if( 0 != $t_bug_data->profile_id ) {
 	if( profile_is_global( $t_bug_data->profile_id ) ) {