---
id: CVE-2026-19224
title: >-
  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
  enti…
summary: >-
  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
  enti…
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-94
published: '2026-09-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T19:15:18.627'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-19224'
references:
  - url: 'https://wpscan.com/vulnerability/443461c5-93c4-49b4-a5c2-057b7afa4ce6/'
    label: contact@wpscan.com
tags:
  - nvd
epss: 0.0037
epssPercentile: 0.28111
ingestedAt: '2026-09-08T20:10:03.163Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.