Vulnerability · Published Oct 1, 2026 · Assigned by VulnCheck

CVE-2026-101888Prime Mover < 2.2.1 Zip Slip Path Traversal File Write

High 7.2

In plain English

A high-severity path traversal in Prime Mover from Codexonics. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).

Severity (CVSS 3.1)7.2High

Exploit odds (30 days)0.6%top 52.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Codexonics	Prime Mover	0 – before 2.2.1

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References

WordPress Changelog release-notes, patch
https://www.vulncheck.com/advisories/prime-mover-zip-slip-path-traversal-file-write third-party-advisory