Prime Mover < 2.2.1 Stored XSS via Package Metadata (CVE-2026-101890) | HOL Guard CVE

Medium · CVSS 5.1CVE-2026-101890

Prime Mover < 2.2.1 Stored XSS via Package Metadata

Answer in brief

CVE-2026-101890 records a Medium severity (CVSS 5.1) vulnerability in Prime Mover < 2.2.1 Stored XSS via Package Metadata. 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: Medium · CVSS 5.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

CVSS is 5.1. 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 stored cross-site scripting vulnerability that allows attackers to execute arbitrary JavaScript by injecting an unescaped site_title value in a package's footprint.json file. Attackers can place a crafted package under the prime-mover-export-files directory so that the malicious value renders unescaped in the column_site_title() method of PrimeMoverBackupMenuListTable.php, triggering script execution in an administrator's browser when they view the Prime Mover Packages list table without needing to restore the package.

Quoted source text, attributed separately from HOL analysis.