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WordPress Tribulant Slideshow Galleries 1.6.3 Cross Site Scripting

WordPress Tribulant Slideshow Galleries 1.6.3 Cross Site Scripting
Posted Mar 3, 2017
Authored by Spyros Gasteratos

WordPress Tribulant Slideshow Galleries plugin version 1.6.3 suffers from a cross site scripting vulnerability.

tags | exploit, xss
MD5 | eb4213b7bedb40b92c7e6f95446f28ee

WordPress Tribulant Slideshow Galleries 1.6.3 Cross Site Scripting

Change Mirror Download
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Cross-Site Scripting vulnerability in Tribulant Slideshow Galleries
WordPress Plugin
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Spyros Gasteratos, July 2016

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Abstract
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A Cross-Site Scripting vulnerability was found in the Tribulant
Slideshow Galleries 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-20160714-0016

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Tested versions
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This issue was successfully tested on Tribulant Slideshow Galleries
WordPress Plugin version 1.6.3.

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Fix
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A fix for this issue is not available.

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



A reflected cross site scripting vulnerability exists in the plugin Slideshow Galleries. This issue is due to to the fact that the view/admin/galleries/index.php file uses the following code to output an HREF link:
"<a href="<?php echo GalleryHtmlHelper::retainquery('orderby=id&order=' .(($orderby == "id") ? $otherorder : "asc")); ?>">"

The above code fails to perform any output encoding on the retainquery method, thus allowing the tag to be closed and to inject a script element: /wp-admin/admin.php?page=slideshow-galleries&method=save"><script>alert(1)<%2fscript>pwned

Please note that this particular method is called another 19 times in the project. This indicates that more similar vulnerabilities could exist in the code.

Proof of concept

http://<target>/wp-admin/admin.php?page=slideshow-galleries&method=savegtlcq%5C%22%3E%3Cscript%3Ealert%281%29%3C%2Fscript%3Exsxa2


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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.

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