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WordPress Contact Form DB 2.8.13 Cross Site Scripting

WordPress Contact Form DB 2.8.13 Cross Site Scripting
Posted Oct 10, 2014
Authored by High-Tech Bridge SA | Site htbridge.com

WordPress Contact Form DB plugin version 2.8.13 suffers from a cross site scripting vulnerability.

tags | exploit, xss
advisories | CVE-2014-7139
MD5 | cf4fe085fd044fb52226477f8f5ca213

WordPress Contact Form DB 2.8.13 Cross Site Scripting

Change Mirror Download
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.
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