CVE-2026-19224
High
Description
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.
SeverityHigh
CVSS7.2
Exploit probability—
ProductHummingbird Performance
PublishedSep 4, 2026
First seenSep 4, 2026
Weakness typeCWE-94Code injection
How to fix
Update
- Hummingbird Performance3.21.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Hummingbird Performance | 3.15.0 ≤ v < 3.21.2 | 3.21.2 |
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