Prime Mover < 2.2.1 Zip Slip Path Traversal File Write (CVE-2026-101888) | HOL Guard CVE

High · CVSS 8.6CVE-2026-101888

Prime Mover < 2.2.1 Zip Slip Path Traversal File Write

Answer in brief

CVE-2026-101888 records a High severity (CVSS 8.6) vulnerability in Prime Mover < 2.2.1 Zip Slip Path Traversal File Write. The current sources do not mark it as known exploited. The current feed maps Codexonics/Prime Mover (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 1, 2026Updated Oct 1, 2026Source checked Oct 1, 2026First seen by HOL Oct 1, 2026Material review Oct 1, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.6
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 8.6. 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 Codexonics/Prime Mover (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Codexonics/Prime Movergeneric	>=0 <2.2.1	2.2.1

Recommended response

Check inventory. Check lockfiles and deployed manifests for Codexonics/Prime Mover.
Review the reported fix. Update Codexonics/Prime Mover to 2.2.1 if you use the affected versions. Test the change in a non-production environment first.

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 Prime Mover plugin for WordPress before 2.2.1 contains a Zip Slip path traversal vulnerability that allows authenticated administrators to write arbitrary files outside the intended extraction directory during migration ZIP import. Attackers can craft ZIP entry names with traversal sequences processed by computeExtractionParameters() and resumableZipExtractor() in utilities/PrimeMoverSystemCheckUtilities.php to write attacker-controlled content to arbitrary filesystem locations, potentially achieving remote code execution if the written files are interpreted by the web environment.

Quoted source text, attributed separately from HOL analysis.