Unknown severity · Source severity not reportedCVE-2026-104028

Anton Extensions <= 1.2.2 - Unauthenticated Arbitrary File Upload to RCECVE-2026-104028

Answer in brief

CVE-2026-104028 records a Unknown severity vulnerability in Anton Extensions <= 1.2.2 - Unauthenticated Arbitrary File Upload to RCE. The current sources do not mark it as known exploited. The current feed maps Unknown/Anton Extensions (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 11, 2026Updated Oct 11, 2026Source checked Oct 11, 2026First seen by HOL Oct 11, 2026Material review Oct 11, 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: Not reported

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/Anton Extensions (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Anton Extensionsgeneric	>=0 <=1.2.2	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Anton Extensions.
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 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 11, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 11, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Anton Extensions WordPress plugin through 1.2.2 does not perform any capability check, nonce verification, or file-type validation before writing attacker-supplied content to an attacker-chosen path, allowing unauthenticated attackers to upload arbitrary PHP files and achieve remote code execution.

Quoted source text, attributed separately from HOL analysis.