CVE-2026-16051: Unknown Wpmudev-Updates

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

The wpmudev-updates WordPress plugin before 5.0.1 does not verify the integrity of the packages installed through its remote management interface, nor protect those requests against replay, allowing an attacker able to obtain or replay a valid signed management request to install and execute arbitrary code (remote code execution).

Affected products

• Unknown Wpmudev-Updates: before 5.0.1 (fixed in 5.0.1)

Published 2026-08-12. Last modified 2026-08-26.