Fix blocking all users within the registration process

See #2692
See #2920

diff --git a/wcfsetup/install/files/lib/form/RegisterForm.class.php b/wcfsetup/install/files/lib/form/RegisterForm.class.php
index 1d27627ed42590539689373f8521bf3e77975ad4..1d2d2b33455d1c6a7a4ea1d00ac0a5f9cf91dbe0 100644 (file)
--- a/wcfsetup/install/files/lib/form/RegisterForm.class.php
+++ b/wcfsetup/install/files/lib/form/RegisterForm.class.php
@@ -178,7 +178,7 @@ class RegisterForm extends UserAddForm {
                
                if (BLACKLIST_SFS_ENABLE) {
                        $this->blacklistMatches = BlacklistEntry::getMatches($this->username, $this->email, UserUtil::getIpAddress());
-                       if (BLACKLIST_SFS_ACTION === 'block') {
+                       if (!empty($this->blacklistMatches) && BLACKLIST_SFS_ACTION === 'block') {
                                throw new NamedUserException('wcf.user.register.error.blacklistMatches');
                        }
                }