CVE-2023-51490: Wpmudev Defender Security

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in WPMU DEV Defender Security – Malware Scanner, Login Security & Firewall.This issue affects Defender Security – Malware Scanner, Login Security & Firewall: from n/a through 4.1.0.

Affected products

• Wpmudev Defender Security: up to and including 4.1.0

Published 2024-01-08. Last modified 2026-06-17.