and escape the search term

apps/user_ldap/group_ldap.php

@@ -444,6 +444,7 @@ class GROUP_LDAP extends BackendUtility implements \OCP\GroupInterface {
 		if(!$this->groupExists($gid)) {
 			return array();
 		}
+		$search = $this->access->escapeFilterPart($search, true);
 		$cacheKey = 'usersInGroup-'.$gid.'-'.$search.'-'.$limit.'-'.$offset;
 		// check for cache of the exact query
 		$groupUsers = $this->access->connection->getFromCache($cacheKey);
@@ -557,6 +558,7 @@ class GROUP_LDAP extends BackendUtility implements \OCP\GroupInterface {
 			$this->access->connection->writeToCache($cacheKey, $groupUsers);
 			return $groupUsers;
 		}
+		$search = $this->access->escapeFilterPart($search, true);
 		$isMemberUid =
 			(strtolower($this->access->connection->ldapGroupMemberAssocAttr)
 			=== 'memberuid');
@@ -663,6 +665,7 @@ class GROUP_LDAP extends BackendUtility implements \OCP\GroupInterface {
 		if(!$this->enabled) {
 			return array();
 		}
+		$search = $this->access->escapeFilterPart($search, true);
 		$pagingSize = $this->access->connection->ldapPagingSize;
 		if ((! $this->access->connection->hasPagedResultSupport)
 		   	|| empty($pagingSize)) {

apps/user_ldap/lib/access.php

@@ -958,7 +958,7 @@ class Access extends LDAPUtility implements user\IUserTools {
 	/**
 	* escapes (user provided) parts for LDAP filter
 	* @param string $input, the provided value
-	* @param bool $allowAsterisk wether in * at the beginning should be preserved
+	* @param bool $allowAsterisk whether in * at the beginning should be preserved
 	* @return string the escaped string
 	*/
 	public function escapeFilterPart($input, $allowAsterisk = false) {

apps/user_ldap/lib/connection.php

@@ -32,6 +32,7 @@ namespace OCA\user_ldap\lib;
  * @property boolean hasPagedResultSupport
  * @property string[] ldapBaseUsers
  * @property int|string ldapPagingSize holds an integer
+ * @property bool|mixed|void ldapGroupMemberAssocAttr
  */
 class Connection extends LDAPUtility {
 	private $ldapConnectionRes = null;