Cross-Site Scripting (XSS) in Photo Gallery WordPress plugin

Advisory ID:HTB23232
Product:Photo Gallery WordPress plugin
Vendor:http://web-dorado.com/
Vulnerable Versions:1.1.30 and probably prior
Tested Version:1.1.30
Advisory Publication:September 10, 2014 [without technical details]
Vendor Notification:September 10, 2014
Vendor Fix:September 10, 2014
Public Disclosure:October 1, 2014
Vulnerability Type:Cross-Site Scripting [CWE-79]
CVE Reference:CVE-2014-6315
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 three vulnerabilities in Photo Gallery WordPress plugin, which can be exploited to perform Cross-Site Scripting (XSS) attacks.


1) Cross-Site Scripting (XSS) in Photo Gallery WordPress plugin: CVE-2014-6315

1.1 Input passed via the "callback" HTTP GET parameter to "/wp-admin/admin-ajax.php" script is not properly sanitised before being returned to the user. A remote attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in victim's browser in context of the vulnerable website.

The exploitation example below uses the "alert()" JavaScript function to display "immuniweb" word:

http://[host]/wp-admin/admin-ajax.php?action=addImages&width=700&height=550& extensions=jpg&callback=%27%22%3E%3C/script%3E%3Cscript%3Ealert%28/immuniweb /%29;%3C/script%3E

1.2 Input passed via the "dir" HTTP GET parameter to "/wp-admin/admin-ajax.php" script is not properly sanitised before being returned to the user. A remote attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in victim's browser in context of the vulnerable website.

The exploitation example below uses the "alert()" JavaScript function to display "immuniweb" word:

http://[host]/wp-admin/admin-ajax.php?action=addImages&width=700&height=550& extensions=jpg&dir=%27%22%3E%3C/script%3E%3Cscript%3Ealert%28/immuniweb/%29; %3C/script%3E

1.3 Input passed via the "extensions" HTTP GET parameter to "/wp-admin/admin-ajax.php" script is not properly sanitised before being returned to the user. A remote attacker can trick a logged-in administrator to open a specially crafted link and execute arbitrary HTML and script code in victim's browser in context of the vulnerable website.

The exploitation example below uses the "alert()" JavaScript function to display "immuniweb" word:

http://[host]/wp-admin/admin-ajax.php?action=addImages&width=700&height=550& extensions=%27%22%3E%3C/script%3E%3Cscript%3Ealert%28/immuniweb/%29;%3C/scri pt%3E

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Solution:
Update to Photo Gallery 1.1.31


References:
[1] High-Tech Bridge Advisory HTB23232 - https://www.immuniweb.com/advisory/HTB23232 - Cross-Site Scripting (XSS) in Photo Gallery WordPress plugin.
[2] Photo Gallery WordPress plugin - http://web-dorado.com/ - This plugin is a fully responsive gallery plugin with advanced functionality. It allows having different image galleries for your posts and pages. You can create unlimited number of galleries, combine them into albums, and provide descriptions and tags.
[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.
[5] ImmuniWeb® - Leveraging the power of machine-learning and genius of human brain to deliver the most advanced web application security and penetration testing.
[6] ImmuniWeb® SSLScan - Test your servers for security and compliance with PCI DSS, HIPAA and NIST.
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