CVE-2026-19224
The Hummingbird Performance WordPress plugin before 3.21.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network.
- Published Sep 4, 2026
- CVSS 7.2 high
- 0.4% chance of exploitation in the next 30 days (EPSS)
- A fix is available