Cross-Site Request Forgery Vulnerability in Custom Banners Plugin for WordPress
CVE-2021-4407

4.3MEDIUM

Key Information:

Vendor

Wordpress
Status
Custom Banners
Vendor
CVE Published:
12 July 2023

What is CVE-2021-4407?

The Custom Banners plugin for WordPress, in versions up to and including 3.2.2, lacks proper nonce validation in its saveCustomFields() function. This oversight allows unauthenticated attackers to exploit the vulnerability by tricking a site administrator into performing actions, potentially leading to unauthorized changes on the website through forged requests.

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Affected Version(s)

Custom Banners * <= 3.2.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://blog.nintechnet.com/25-wordpress-plugins-vulnerab...
https://blog.nintechnet.com/more-wordpress-plugins-and-th...

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jerome Bruandet
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