Home / exploits WordPress NextGEN Gallery 1.9.5 Cross Site Scripting
Posted on 07 September 2012
Title: ====== NextGEN Gallery v1.9.5 Wordpress - Web Vulnerabilities Date: ===== 2012-08-23 References: =========== http://www.vulnerability-lab.com/get_content.php?id=693 VL-ID: ===== 693 Common Vulnerability Scoring System: ==================================== 3.5 Introduction: ============= NextGEN Gallery is the most popular photo gallery plugin for WordPress, and one of the most popular WordPress plugins of any kind with over 5 million downloads. It provides a powerful engine for uploading and managing galleries of images, with the ability to batch upload, import meta data, add/delete/rearrange/sort images, edit thumbnails, group galleries into albums, and more. It also provides two front-end display styles (slideshows and thumbnail galleries), both of which come with a wide array of options for controlling size, style, timing, transitions, controls, lightbox effects, and more. NextGEN Gallery is now proudly maintained by Photocrati Media. Special thanks to Alex Rabe who created and maintained the plugin from 2007 through 2011. (Copy of the Vendor Homepage: http://wordpress.org/extend/plugins/nextgen-gallery/ ) Abstract: ========= The Vulnerability Laboratory Research Team discovered multiple web vulnerabilities in the NextGEN Gallery v1.9.5 Wordpress Application Addon. Report-Timeline: ================ 2012-08-23: Public Disclosure Status: ======== Published Exploitation-Technique: ======================= Remote Severity: ========= Medium Details: ======== Multiple non persistent cross site scripting vulnerabilities are detected in the NextGEN Gallery v1.9.5 Wordpress Application Addon. The vulnerability allows remote attackers to hijack website customer, moderator or admin sessions with medium or high required user inter action. The bugs are located on server side in the general option module with the bound vulnerable gallery path parameter request. Successful exploitation can result in wordpress application account steal, client side phishing & client-side content request manipulation. Exploitation requires low or medium user inter action & with privileged web application user account. Vulnerable Module(s): [+] General Options Vulnerable Parameter(s): [+] Gallery path Proof of Concept: ================= The persistent vulnerability can be exploited by remote attackers with low required user inter action & low privileged application user account. For demonstration or reproduce ... Inject the following example string to the application input (persistent) or parameter (client side) String: >"<iframe src=http://www.vulnerability-lab.com></iframe> Review: General Options - Gallery path <tr valign="top"> <th align="left">Gallery path</th> <td><input size="35" name="gallerypath" value="asd" <[PERSISTENT INJECTED SCRIPT CODE!]="" Risk: ===== The security risk of the persistent input validation vulnerabilities are estimated as medium. Credits: ======== Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm@vulnerability-lab.com) Disclaimer: =========== The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability- Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack into databases or trade with fraud/stolen material. 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