WordPress User Access Manager 1.2.6.7 Cross Site Scripting

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Persistent Cross-Site Scripting vulnerability in User Access Manager
WordPress Plugin
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Burak Kelebek, July 2016

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Abstract
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A persistent Cross-Site Scripting vulnerability has been encountered in
the User Access Manager WordPress Plugin. This issue allows an attacker
to perform a wide variety of actions, such as stealing Administrators’
session tokens, or performing arbitrary actions on their behalf. In
order to exploit this issue, the attacker has to lure/force a logged on
WordPress Administrator into opening a malicious website.

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OVE ID
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OVE-20160712-0025

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Tested versions
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This issue was successfully tested on the User Access Manager WordPress
Plugin version 1.2.6.7.

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Fix
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This issue is resolved in User Access Manager version 1.2.14.

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Details
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https://sumofpwn.nl/advisory/2016/persistent_cross_site_scripting_vulnerability_in_user_access_manager_wordpress_plugin.html

Persistent Cross-Site Scripting was found in admin panel ‘manage’ page of User Access Manager. Multiple parameters in POST uam_usergroup are affected due to insufficient output encoding. This issue allows an attacker to perform a wide variety of actions, such as stealing Administrators’ session tokens, or performing arbitrary actions on their behalf. In order to exploit this issue, the attacker has to lure/force a logged on WordPress Administrator into opening a malicious website.

Proof of concept
























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