Two XSS in Contact Form DB WordPress plugin

[High-Tech Bridge Security Research <advisory@xxxxxxxxxxxx>]

Advisory ID: HTB23233
Product: Contact Form DB WordPress plugin
Vendor: Michael Simpson
Vulnerable Version(s): 2.8.13 and probably prior
Tested Version: 2.8.13
Advisory Publication:  September 17, 2014  [without technical details]
Vendor Notification: September 17, 2014 
Vendor Patch: September 25, 2014 
Public Disclosure: October 8, 2014 
Vulnerability Type: Cross-Site Scripting [CWE-79]
CVE Reference: CVE-2014-7139
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 ( 
https://www.htbridge.com/advisory/ ) 

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Advisory Details:

High-Tech Bridge Security Research Lab discovered two XSS vulnerabilities in 
Contact Form DB WordPress plugin, which can be exploited to perform Cross-Site 
Scripting (XSS) attacks against administrator of a WordPress website with 
vulnerable plugin installed.

1) Two Cross-Site Scripting (XSS) Vulnerabilities in Contact Form DB WordPress 
Plugin: CVE-2014-7139

1.1 Input passed via the "form" HTTP GET parameter to "/wp-admin/admin.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 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.php?page=CF7DBPluginShortCodeBuilder&form=%27%22%3E%3Cscript%3Ealert%28/immuniweb/%29;%3C/script%3E

1.2 Input passed via the "enc" HTTP GET parameter to "/wp-admin/admin.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 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.php?page=CF7DBPluginShortCodeBuilder&enc=%27%22%29;%3Cscript%3Ealert%28/immuniweb/%29;%3C/script%3E

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Solution:

Update to Contact Form DB 2.8.16.

More Information:
https://wordpress.org/plugins/contact-form-7-to-database-extension/changelog/

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References:

[1] High-Tech Bridge Advisory HTB23233 - 
https://www.htbridge.com/advisory/HTB23233 - Tow XSS in Contact Form DB 
WordPress Plugin.
[2] Contact Form DB WordPress plugin - 
http://wordpress.org/plugins/contact-form-7-to-database-extension/ - Save form 
submissions to the database from Contact Form 7, Fast Secure Contact Form, 
JetPack Contact Form and Gravity Forms. Includes exports and short codes.
[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® SaaS - https://www.htbridge.com/immuniweb/ - hybrid of manual 
web application penetration test and cutting-edge vulnerability scanner 
available online via a Software-as-a-Service (SaaS) model.

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Disclaimer: The information provided in this Advisory is provided "as is" and 
without any warranty of any kind. Details of this Advisory may be updated in 
order to provide as accurate information as possible. The latest version of the 
Advisory is available on web page [1] in the References.