Forminator Forms <= 1.57.2 - Unauthenticated Stored Cross-Site Scripting via 'postdata-1[post-custom]' Parameter (CVE-2026-92144)

Forminator Forms <= 1.57.2 - Unauthenticated Stored Cross-Site Scripting via 'postdata-1[post-custom]' Parameter (CVE-2026-92144) | HOL Guard CVE

Why this deserves its current priority

CVSS is 7.2. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps wpmudev/Forminator Forms – Contact Form, Payment Form & Custom Form Builder (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
wpmudev/Forminator Forms – Contact Form, Payment Form & Custom Form Buildergeneric	>=0 <=1.57.2	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for wpmudev/Forminator Forms – Contact Form, Payment Form & Custom Form Builder.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 1, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 1, 2026

Sources and claim methodology

Upstream source description

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'postdata-1[post-custom]' Parameter in all versions up to, and including, 1.57.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The required form submission nonce is freely obtainable by unauthenticated users via the publicly accessible wp_ajax_nopriv_forminator_get_nonce endpoint, making the full attack chain exploitable without any authentication or prior account.

Quoted source text, attributed separately from HOL analysis.