CVE-2026-19224CWE-94code-injection

CVE-2026-19224

High · published September 4, 2026

CVSS v3.1
7.2
EPSS
0%
Percentile
29.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.2 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00370 · 29.7th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-09-04T11:17Z
References (1)
https://wpscan.com/vulnerability/443461c5-93c4-49b4-a5c2-057b7afa4ce6/ · [email protected]
EPSS history
Timeline
  • 05 SEP 03:40Z
    EPSS moved — → 0%
    epss
  • 04 SEP 06:00Z
    Hummingbird < 3.21.2 - Admin+ Network-Wide RCE via Hub Connector on Multisite
    cvelistv5