Unknown severity · Source severity not reportedCVE-2026-94267

Advanced Custom Fields: Extended < 0.9.2.8 - Unauthenticated RCE via Front-End Post Update ActionCVE-2026-94267

Answer in brief

CVE-2026-94267 records a Unknown severity vulnerability in Advanced Custom Fields: Extended < 0.9.2.8 - Unauthenticated RCE via Front-End Post Update Action. The current sources do not mark it as known exploited. The current feed maps Unknown/Advanced Custom Fields: Extended (generic), Unknown/Advanced Custom Fields: Extended PRO (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 Oct 23, 2026Updated Oct 23, 2026Source checked Oct 23, 2026First seen by HOL Oct 23, 2026Material review Oct 23, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
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/Advanced Custom Fields: Extended (generic), Unknown/Advanced Custom Fields: Extended PRO (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Advanced Custom Fields: Extendedgeneric	>=0 <0.9.2.8	0.9.2.8
Unknown/Advanced Custom Fields: Extended PROgeneric	>=0 <0.9.2.8	0.9.2.8

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Advanced Custom Fields: Extended, Unknown/Advanced Custom Fields: Extended PRO.
Review the reported fix. Update Unknown/Advanced Custom Fields: Extended to 0.9.2.8; Unknown/Advanced Custom Fields: Extended PRO to 0.9.2.8 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 23, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Advanced Custom Fields: Extended WordPress plugin before 0.9.2.8, Advanced Custom Fields: Extended PRO WordPress plugin before 0.9.2.8 does not perform any capability check when updating a post through one of its front-end form actions, allowing unauthenticated visitors to overwrite arbitrary posts, including the ones in which the site stores its own field definitions, which in turn leads to arbitrary code execution on the server. Exploitation requires the site to publish a form whose post-update action maps both its target and its content to visitor-submitted values.

Quoted source text, attributed separately from HOL analysis.