Secure Custom Fields < 6.9.4 - Unauthenticated Post Modification via Front-End Form ID Substitution (CVE-2026-92403) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-92403

Secure Custom Fields < 6.9.4 - Unauthenticated Post Modification via Front-End Form ID Substitution

Answer in brief

CVE-2026-92403 records a Unknown severity vulnerability in Secure Custom Fields < 6.9.4 - Unauthenticated Post Modification via Front-End Form ID Substitution. The current sources do not mark it as known exploited. The current feed maps Unknown/Secure Custom Fields (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 19, 2026Updated Sep 19, 2026Source checked Sep 19, 2026First seen by HOL Sep 19, 2026Material review Sep 19, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 Unknown/Secure Custom Fields (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Secure Custom Fieldsgeneric	>=0 <6.9.4	6.9.4

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Secure Custom Fields.
Review the reported fix. Update Unknown/Secure Custom Fields to 6.9.4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 19, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 19, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Secure Custom Fields WordPress plugin before 6.9.4 does not properly verify that a front-end form submission corresponds to the form that was rendered to the visitor, allowing unauthenticated users to submit against a different registered form and modify the title and content of the post that form is bound to.

Quoted source text, attributed separately from HOL analysis.