CVE-2026-101890 Prime Mover < 2.2.1 Stored XSS via Package Metadata
Attackers can inject malicious JavaScript via package metadata, leading to script execution in an administrator's browser when viewing the package list.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-101890?
CVE-2026-101890 is a medium-severity cross-site scripting vulnerability in Codexonics Prime Mover, published on 1 Oct 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
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.
Weakness: CWE-79
Which versions are affected by CVE-2026-101890?
How do I fix CVE-2026-101890?
No fix has been published for CVE-2026-101890 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-101890 being exploited?
There is no known exploitation of CVE-2026-101890 in the wild and no public exploit code.
Sources
Also known as GHSA-rpr7-hhq5-32r7.