WordPress MDC Private Message Plugin 1.0.0 - Persistent XSS Vulnerability

# Exploit Title: WordPress MDC Private Message Persistent XSS
# Date: 8/20/15
# Exploit Author: Chris Kellum
# Vendor Homepage: http://medhabi.com/
# https://wordpress.org/plugins/mdc-private-message/
# Version: 1.0.0
 
 
 
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Vulnerability Details
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The 'message' field doesn't sanitize input, allowing a less privileged user (Editor, Author, etc.)
to execute an XSS attack against an Administrator.
 
Proof of Concept: 
 
Place <script>alert('Hello!')</script> in the message field of a private message and then submit.
 
Open the message and the alert window will fire.
 
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Disclosure Timeline
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8/16/15 - Vendor notified.
8/19/15 - Version 1.0.1 released.
8/20/15 - Public Disclosure.

#  0day.today [2018-04-14]  #