Vulnerability · Published Oct 1, 2026 · Assigned by VulnCheck

CVE-2026-101890Prime Mover < 2.2.1 Stored XSS via Package Metadata

Medium 5.4

In plain English

A medium-severity cross-site scripting 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 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)0.2%top 94.4% 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 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.

Affected products (as reported)

Vendor	Product	Versions
Codexonics	Prime Mover	0 – before 2.2.1

Weakness: CWE-79 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

References

WordPress Changelog release-notes, patch
https://www.vulncheck.com/advisories/prime-mover-stored-xss-via-package-metadata third-party-advisory