Description:============
product: MyBB
Homepage: https://mybb.com/
vulnerableversion:<1.8.11
Severity: Low risk
===============
Proof of Concept:=============
vulnerability address:http://127.0.0.1/mybb_1810/Upload/admin/index.php?module=config-smilies&action=add_multiple
vulnerabilityfile directory:/webroot/mybb_1810/Upload/admin/modules/config/smilies.php
vulnerabilityCode:
Line 326 $path = $mybb->input['pathfolder'];
Line 327 $dir= @opendir(MYBB_ROOT.$path);if we input"pathfolder" to "../../bypass/smile",Directory Traversal success!
============
Fixed:============
This vulnerability was fixed in version 1.8.11
MyBB 1.8.11& Merge System 1.8.11 Release
=============