Peter’s Custom Anti-Spam <= 3.2.3 - Cross-Site Request Forgery via cas_register_post Function
Vulnerability Description
The Peter’s Custom Anti-Spam plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.2.3. This is due to missing nonce validation on the cas_register_post() function. This makes it possible for unauthenticated attackers to blacklist emails via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
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:
- SOPROBRO
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/3c52ca89-4f13-41da-bc10-80d212c6219c?source=cve
- https://plugins.trac.wordpress.org/browser/peters-custom-anti-spam-image/trunk/custom_anti_spam.php#L1081
- https://wordpress.org/plugins/peters-custom-anti-spam-image/#developers
- https://plugins.trac.wordpress.org/changeset/3208894/
Affected Vendor
pkthree
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