CVE-2021-4407 describes a Cross-Site Request Forgery (CSRF) vulnerability in the Custom Banners plugin for WordPress, affecting versions up to and including 3.2.2. This flaw stems from inadequate nonce validation within the saveCustomFields() function. An unauthenticated attacker could exploit this by tricking a site administrator into clicking a malicious link, leading to unauthorized saving of custom fields. The vulnerability has a CVSS score of 4.3 (Medium), indicating a low attack complexity and requiring user interaction, with a potential impact of low integrity. There is no confidentiality or availability impact. Currently, there is no known active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE. It is not listed in the CISA KEV catalog.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 3.2.2CPE matchmatch criteria | cpe:2.3:a:goldplugins:custom_banners:*:*:*:*:*:wordpress:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.