what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

WordPress Canvas - Shortcodes 1.92 Cross Site Scripting

WordPress Canvas - Shortcodes 1.92 Cross Site Scripting
Posted Nov 20, 2016
Authored by Yorick Koster, Securify B.V.

WordPress Canvas - Shortcodes plugin version 1.92 suffers from a persistent cross site scripting vulnerability.

tags | exploit, xss
SHA-256 | df2444b47f4a472964932e55ac22ed373bde66c7f0329b98e3a724aa42845768

WordPress Canvas - Shortcodes 1.92 Cross Site Scripting

Change Mirror Download
------------------------------------------------------------------------
Stored Cross-Site Scripting in WP Canvas - Shortcodes WordPress Plugin
------------------------------------------------------------------------
Yorick Koster, July 2016

------------------------------------------------------------------------
Abstract
------------------------------------------------------------------------
A Cross-Site Scripting vulnerability was found in the WP Canvas -
Shortcodes WordPress Plugin. This issue allows an attacker to perform a
wide variety of actions, such as stealing Administrators' session
tokens, or performing arbitrary actions on their behalf. This issue can
be exploited by authenticated users with the Contributor or higher role.

------------------------------------------------------------------------
OVE ID
------------------------------------------------------------------------
OVE-20160724-0031

------------------------------------------------------------------------
Tested versions
------------------------------------------------------------------------
This issue was successfully tested on WP Canvas - Shortcodes WordPress
Plugin version 1.92.

------------------------------------------------------------------------
Fix
------------------------------------------------------------------------
This issue has been addressed in WP Canvas - Shortcodes WordPress Plugin
version 2.07.

------------------------------------------------------------------------
Details
------------------------------------------------------------------------
https://sumofpwn.nl/advisory/2016/stored_cross_site_scripting_in_wp_canvas___shortcodes_wordpress_plugin.html

This issue exists due to the lack of validation on the url attributed of the wc_button shortcode. A Contributor or higher can create a button with a specially crafted Javascript payload. When a (logged) on user clicks on this button, the payload will be executed. This bypasses the unfiltered_html privilege of WordPress, which is normally only assigned to Editors & Administrators.

Proof of concept

[wc_button type="primary" url="javascript:alert(1)" title="Visit Site" target="self" position="float"]Sample Content[/wc_button]


------------------------------------------------------------------------
Summer of Pwnage (https://sumofpwn.nl) is a Dutch community project. Its
goal is to contribute to the security of popular, widely used OSS
projects in a fun and educational way.
Login or Register to add favorites

File Archive:

April 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Apr 1st
    10 Files
  • 2
    Apr 2nd
    26 Files
  • 3
    Apr 3rd
    40 Files
  • 4
    Apr 4th
    6 Files
  • 5
    Apr 5th
    26 Files
  • 6
    Apr 6th
    0 Files
  • 7
    Apr 7th
    0 Files
  • 8
    Apr 8th
    22 Files
  • 9
    Apr 9th
    14 Files
  • 10
    Apr 10th
    10 Files
  • 11
    Apr 11th
    13 Files
  • 12
    Apr 12th
    14 Files
  • 13
    Apr 13th
    0 Files
  • 14
    Apr 14th
    0 Files
  • 15
    Apr 15th
    30 Files
  • 16
    Apr 16th
    10 Files
  • 17
    Apr 17th
    0 Files
  • 18
    Apr 18th
    0 Files
  • 19
    Apr 19th
    0 Files
  • 20
    Apr 20th
    0 Files
  • 21
    Apr 21st
    0 Files
  • 22
    Apr 22nd
    0 Files
  • 23
    Apr 23rd
    0 Files
  • 24
    Apr 24th
    0 Files
  • 25
    Apr 25th
    0 Files
  • 26
    Apr 26th
    0 Files
  • 27
    Apr 27th
    0 Files
  • 28
    Apr 28th
    0 Files
  • 29
    Apr 29th
    0 Files
  • 30
    Apr 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close