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Cross-Site Scripting (XSS) in Duplicator WordPress Plugin

Advisory ID:HTB23162
Product:Duplicator WordPress Plugin
Vendor:LifeInTheGrid
Vulnerable Versions:0.4.4 and probably prior
Tested Version:0.4.4
Advisory Publication:June 19, 2013 [without technical details]
Vendor Notification:June 19, 2013
Vendor Fix:July 21, 2013
Public Disclosure:July 24, 2013
Latest Update:July 22, 2013
Vulnerability Type:Cross-Site Scripting [CWE-79]
CVE Reference:CVE-2013-4625
Risk Level:Low
CVSSv2 Base Score:2.6 (AV:N/AC:H/Au:N/C:N/I:P/A:N)
Solution Status:Fixed by Vendor
Discovered and Provided:High-Tech Bridge Security Research Lab
 

Advisory Details:

High-Tech Bridge Security Research Lab discovered XSS vulnerability in Duplicator WordPress plugin, which can be exploited to perform cross-site scripting attacks against vulnerable application.

1) Cross-Site Scripting (XSS) in Duplicator WordPress Plugin: CVE-2013-4625
The vulnerability exists due to insufficient filtration of user-supplied data in "package" HTTP GET parameter passed to "/wp-content/plugins/duplicator/files/installer.cleanup.php" script. A remote attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in browser in context of the vulnerable website.
The exploitation example below uses the "alert()" JavaScript function to display administrator's cookies:
http://[host]/wp-content/plugins/duplicator/files/installer.cleanup.php?remo ve=1&package=%3Cscript%3Ealert%28document.cookie%29;%3C/script%3E

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Solution:
Upgrade to Duplicator 0.4.5

More Information:
http://support.lifeinthegrid.com/knowledgebase.php?article=20


References:
[1] High-Tech Bridge Advisory HTB23162 - https://www.immuniweb.com/advisory/HTB23162 - Cross-Site Scripting (XSS) in Duplicator WordPress Plugin.
[2] Duplicator WordPress Plugin - http://lifeinthegrid.com/labs/duplicator/ - This free plugin available at wordpress.org is a powerful tool you can use to rapidly clone and deploy any WordPress site.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - international in scope and free for public use, CVE® is a dictionary of publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to developers and security practitioners, CWE is a formal list of software weakness types.
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