CVE-2026-28111

Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.56.0 - Authenticated (Contributor+) Privilege Escalation

2026-08-03 00:00

Strategic Overview

Status: Patched in 1.56.0.1
Affected Plugin: Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Affected Version: <= 1.56.0
CVSS: 8.8High
Weakness type: CWE-266 · Incorrect Privilege Assignment
CVE: CVE-2026-28111

View all Forminator Forms – Contact Form, Payment Form & Custom Form Builder vulnerabilities

At a glance

CVE-2026-28111 is a high-severity Incorrect Privilege Assignment vulnerability in the Forminator Forms WordPress plugin, affecting versions <= 1.56.0. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Contributor level or above. The issue is fixed in version 1.56.0.1; sites on affected versions should update now. Disclosed August 2026, reported by daroo.

Vulnerability Overview

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.56.0. This makes it possible for authenticated attackers, with Contributor-level access and above, to elevate their privileges to that of an administrator.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-266: Incorrect Privilege Assignment

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

Remediation

Update to version 1.56.0.1, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Forminator Forms 1.56.0.1 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-28111 https://www.wordfence.com/threat-intel/vulnerabilities/id/d598e3c7-54ef-4650-abf9-70cb66713d08 https://nvd.nist.gov/vuln/detail/CVE-2026-28111

Related records

Other vulnerabilities in Forminator Forms – Contact Form, Payment Form & Custom Form Builder

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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