CVE-2026-19225Network attack vectorHinoki check available

Site-admin network-wide code execution via unrestricted setting

Published Aug 27, 2026 · Updated Aug 27, 2026

Code injection in WPMU DEV Defender Security before 6.2.0 allows remote authenticated users to execute code across a multisite network. The Hub Connector accepts a network-wide setting from a single-site administrator without restricting the change to a network administrator. Exploitation requires administrator access to one site in a WordPress multisite deployment and extends code execution across the network.

CVSS severityUnavailable
Unscored
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Code injection in WPMU DEV Defender Security before 6.2.0 allows remote authenticated users to execute code across a multisite network. The Hub Connector accepts a network-wide setting from a single-site administrator without restricting the change to a network administrator. Exploitation requires administrator access to one site in a WordPress multisite deployment and extends code execution across the network.

The record

CVE
CVE-2026-19225
Published
Aug 27, 2026
Updated
Aug 27, 2026
Vendor
WPMU DEV
Product
Defender Security
Classifications
CWE-94, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.0.0 <6.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPMU DEV · Defender Securityversion=5.0.0 <6.2.0

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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