CVE-2026-28111Network attack vector

Contributor-level privilege escalation

Published Aug 6, 2026 · Updated Aug 6, 2026

Privilege escalation in WPMU DEV Forminator 1.56.0 and earlier allows remote authenticated users with Contributor access to gain higher privileges. Neither the CNA record nor Patchstack identifies the vulnerable endpoint, action, parameter, missing authorization check, or exact role or capability gained. Contributor-level WordPress access is required; the published impact encompasses confidentiality, integrity, and availability, but the precise post-escalation authority is undisclosed.

CVSS severity8.8
High
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in WPMU DEV Forminator 1.56.0 and earlier allows remote authenticated users with Contributor access to gain higher privileges. Neither the CNA record nor Patchstack identifies the vulnerable endpoint, action, parameter, missing authorization check, or exact role or capability gained. Contributor-level WordPress access is required; the published impact encompasses confidentiality, integrity, and availability, but the precise post-escalation authority is undisclosed.

The record

CVE
CVE-2026-28111
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
WPMU DEV
Product
Forminator
Classifications
CWE-266, CAPEC-233, T1068
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=n/a <=1.56.0 changes=[{"at":"1.56.0.1","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPMU DEV · Forminatorversion=n/a <=1.56.0 changes=[{"at":"1.56.0.1","status":"unaffected"}]

Published CVSS scores

8.8PatchstackCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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-266Incorrect Privilege Assignment
CAPEC-233Privilege Escalation
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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