CVE-2021-4407
Custom Banners <= 3.2.2 - Cross-Site Request Forgery Bypass
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-352 |
| Vendor | ghuger |
| Product | custom banners |
| Published | Jul 12, 2023 |
| Last Updated | Apr 8, 2026 |
Stay Ahead of the Next One
Get instant alerts for ghuger custom banners
Be the first to know when new medium vulnerabilities affecting ghuger custom banners are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
ghuger / Custom Banners
0 ≤ 3.2.2
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/8f4c086d-8209-4212-9d91-67238c1a9143?source=cve blog.nintechnet.com: https://blog.nintechnet.com/25-wordpress-plugins-vulnerable-to-csrf-attacks/ blog.nintechnet.com: https://blog.nintechnet.com/more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks/ blog.nintechnet.com: https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3/ blog.nintechnet.com: https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2/ blog.nintechnet.com: https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1/ blog.nintechnet.com: https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5/ blog.nintechnet.com: https://blog.nintechnet.com/multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4/ plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2473385%40custom-banners&new=2473385%40custom-banners&sfp_email=&sfph_mail=
Credits
Jerome Bruandet