weMail <= 2.0.7 - Missing Authorization to Unauthenticated Form Deletion
Vulnerability Description
The weMail - Email Marketing, Lead Generation, Optin Forms, Email Newsletters, A/B Testing, and Automation plugin for WordPress is vulnerable to unauthorized form deletion in all versions up to, and including, 2.0.7. This is due to the `Forms::permission()` callback only validating the `X-WP-Nonce` header without checking user capabilities. Since the REST nonce is exposed to unauthenticated visitors via the `weMail` JavaScript object on pages with weMail forms, any unauthenticated user can permanently delete all weMail forms by extracting the nonce from the page source and sending a DELETE request to the forms endpoint.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Angus Girvan
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/16dd90c3-3962-4c8e-993f-b6824c48ab76?source=cve
- https://plugins.trac.wordpress.org/browser/wemail/tags/2.0.6/includes/Rest/Forms.php#L124
- https://plugins.trac.wordpress.org/browser/wemail/tags/2.0.6/includes/FrontEnd/Scripts.php#L32
- https://plugins.trac.wordpress.org/browser/wemail/tags/2.0.6/includes/Rest/Forms.php#L222
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3442404%40wemail%2Ftrunk&old=3423372%40wemail%2Ftrunk&sfp_email=&sfph_mail=#file1
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