Stored Cross-Site Scripting vulnerability in Contact Form WordPress Plugin

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Stored Cross-Site Scripting vulnerability in Contact Form WordPress
Plugin
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Julien Rentrop, July 2016

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Abstract
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A stored Cross-Site Scripting vulnerability was found in the Contact
Form WordPress Plugin. This issue allows an attacker to perform a wide
variety of actions, such as stealing users session tokens, or
performing arbitrary actions on their behalf. In order to exploit this
issue, the attacker has to lure/force a victim into opening a malicious
website/link.

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OVE ID
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OVE-20160712-0042

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Tested versions
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This issue was successfully tested on Contact Form by BestWebSoft
WordPress Plugin version 4.0.0.

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Fix
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This issue is partially resolved in Contact Form version 4.0.2.

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

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Summer of Pwnage (https://sumofpwn.nl) is a Dutch community project. Its
goal is to contribute to the security of popular, widely used OSS
projects in a fun and educational way.