Fix unititialized string offset access in query parser

The code always tried to access positon 2 of the parsed token, even for
tokens shorter than that (like OR)

fixes #3896

1 files changed, 1 insertions, 1 deletions

diff --git a/inc/fulltext.php b/inc/fulltext.php
index d2e579544..fda2b0e5b 100644
--- a/inc/fulltext.php
+++ b/inc/fulltext.php
@@ -845,7 +845,7 @@ function ft_queryParser($Indexer, $query){
     $q['parsed_ary'] = $parsed_ary;
 
     foreach ($q['parsed_ary'] as $token) {
-        if ($token[2] !== ':') continue;
+        if (strlen($token) < 3 || $token[2] !== ':') continue;
         $body = substr($token, 3);
 
         switch (substr($token, 0, 3)) {