Vulnerability in Prime Mover – Backup and Migration — CVE-2026-101888

What to do now

Update Prime Mover – Backup and Migration to 2.2.1 or later.

Affected versions

• Everything before 2.2.1

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.

This description is reproduced verbatim from the public vulnerability record.

• https://wordpress.org/plugins/prime-mover/#developers
• https://www.vulncheck.com/advisories/prime-mover-zip-slip-path-traversal-file-write

This page is compiled automatically from public databases. Accuracy is not guaranteed; confirm against the vendor advisory before acting.