Add Custom Fields to Media <= 2.0.3 - Cross-Site Request Forgery to Custom Field Deletion via 'delete' Parameter

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

跨站请求伪造(CSRF)

WordPress plugin Add Custom Fields to Media 跨站请求伪造漏洞

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台具有在基于PHP和MySQL的服务器上架设个人博客网站的功能。WordPress plugin是一个应用插件。 WordPress plugin Add Custom Fields to Media 2.0.3及之前版本存在跨站请求伪造漏洞，该漏洞源于管理显示模板中的字段删除功能缺少随机数验证，可能导致未经验证的攻击者通过伪造请求删除任意自定义媒体字段。

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