Path Traversal in Codexonics Prime Mover
CVE-2026-101889
The Prime Mover plugin for WordPress before 2.2.1 contains a path traversal vulnerability that allows authenticated administrators to delete arbitrary directories by importing a crafted WPRIME/TAR package with manipulated tar_root_folder values in wprime-config.json. Attackers can exploit insufficient path validation in computeExtractVariables() and validateImportedSiteVsPackage() to cause primeMoverDoDelete() to remove directories outside the intended extraction path, potentially deleting critical WordPress directories such as wp-admin and rendering the site inoperable.
Vulnerability class: Path Traversal (Directory Traversal)
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- wordpress.org/plugins/prime-mover/ (release-notes, patch)
- www.vulncheck.com/advisories/prime-mover-path-traversal-via-wprime-config-json (third-party-advisory)
Frequently asked questions
- What is CVE-2026-101889?
- CVE-2026-101889 is a medium-severity vulnerability in Codexonics Prime Mover, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-10-01.
- How severe is CVE-2026-101889?
- Medium severity. CVSS v3 base score is 6.5 out of 10.