Custom Banners <= 3.2.2 - Cross-Site Request Forgery Bypass

4.3
Cross-Site Request Forgery (CSRF)
CVE CVE-2021-4407
CVSS 4.3 (Medium)
Publicly Published March 1, 2021
Last Updated January 22, 2024
Researcher Jerome Bruandet - NinTechNet

Description

The Custom Banners plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 3.2.2 This is due to missing or incorrect nonce validation on the saveCustomFields() function. This makes it possible for unauthenticated attackers to save custom fields via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

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Vulnerability Details for Custom Banners

Software Type Plugin
Software Slug custom-banners (view on wordpress.org)
Patched? Yes
Remediation Update to version 3.3, or a newer patched version
Affected Version
  • <= 3.2.2
Patched Version
  • 3.3

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