CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Lifecycle Timeline
3Description
The Add Custom Fields to Media plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.0.3. This is due to missing nonce validation on the field deletion functionality in the admin display template. The plugin properly validates a nonce for the 'add field' operation (line 24-36), but the 'delete field' operation (lines 38-49) processes the $_GET['delete'] parameter and calls update_option() without any nonce verification. This makes it possible for unauthenticated attackers to delete arbitrary custom media fields via a forged request, granted they can trick a site administrator into performing an action such as clicking on a link.
Analysis
The Add Custom Fields to Media WordPress plugin versions up to 2.0.3 contains a Cross-Site Request Forgery (CSRF) vulnerability in the field deletion functionality that allows unauthenticated attackers to delete arbitrary custom media fields. The vulnerability exists because the plugin validates nonces for the 'add field' operation but fails to validate nonces on the 'delete field' operation, which processes the $_GET['delete'] parameter directly. …
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Remediation
Within 30 days: Identify affected systems running for WordPress is vulnerable to Cross-Site Request Forgery in and apply vendor patches as part of regular patch cycle. Verify anti-CSRF tokens are enforced.
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External POC / Exploit Code
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EUVD-2026-13070