CVE-2025-43920
CVSS 3.1 Score 8.1 of 10 (high)
Details
Published Apr 20, 2025
Updated: Apr 28, 2025
CWE ID 78
Summary
CVE-2025-43920 is a vulnerability affecting GNU Mailman 2.1.39, a mailing list manager used by cPanel and WHM. The issue arises in specific external archiver configurations, allowing unauthenticated attackers to execute arbitrary OS commands by inserting shell metacharacters into an email Subject line. It's important to note that multiple third parties have reported difficulty in reproducing this vulnerability, regardless of whether cPanel or WHM is utilized.
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Affected Products
- GNU Mailman
Affected Vendors
- GNU