Unknown severity · Source severity not reportedCVE-2026-103293

MPG < 4.2.3 - Editor+ Arbitrary File Read via Project Import

Answer in brief

CVE-2026-103293 records a Unknown severity vulnerability in MPG < 4.2.3 - Editor+ Arbitrary File Read via Project Import. The current sources do not mark it as known exploited. The current feed maps Unknown/MPG (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 3, 2026Updated Oct 3, 2026Source checked Oct 3, 2026First seen by HOL Oct 3, 2026Material review Oct 3, 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/MPG (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/MPGgeneric	>=0 <4.2.3	4.2.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/MPG.
Review the reported fix. Update Unknown/MPG to 4.2.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Oct 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Oct 3, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Oct 3, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The MPG WordPress plugin before 4.2.3 does not validate that the dataset source supplied when importing a project is a remote URL before treating it as a local filesystem path and copying that file into a publicly accessible uploads folder. This makes it possible for users with the Editor role and above to read the contents of arbitrary files on the server, with the copied file then retrievable by unauthenticated visitors.

Quoted source text, attributed separately from HOL analysis.