WP Import – Ultimate CSV XML Importer for: Code execution
WP Import – Ultimate CSV XML Importer for is affected by code execution. Exploitation requires at least administrator-level access. Successful exploitation can run attacker-controlled code in the WordPress hosting account.
- Component
- WP Import – Ultimate CSV XML Importer for
- Plugin slug
wp-ultimate-csv-importer- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Nov 19, 2025
This CVE was published Nov 19, 2025 and is one of 14 known issues for this plugin.
Update, patch or deactivate.
Update WP Import – Ultimate CSV XML Importer for to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The WP Import – Ultimate CSV XML Importer for WordPress plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 7.33.1. This is due to deserialization of untrusted data supplied via CSV file imports in the import_single_post_as_csv function within SingleImportExport.php. This makes it possible for authenticated attackers, with administrator-level access or higher, to inject a PHP object. If a POP chain is present via an additional plugin or theme installed on the target system, it could allow the attacker to delete arbitrary files, retrieve sensitive data, or execute code.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H