CVE-2025-13145 Deserialization in WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress
Authenticated administrators can exploit PHP object injection via CSV imports to execute code, read data, or delete files if a POP chain exists.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-13145?
CVE-2025-13145 is a high-severity unsafe deserialization vulnerability in smackcoders WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress, published on 19 Nov 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-502
Which versions are affected by CVE-2025-13145?
How do I fix CVE-2025-13145?
No fix has been published for CVE-2025-13145 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2025-13145 being exploited?
There is no known exploitation of CVE-2025-13145 in the wild and no public exploit code.
Sources
Also known as GHSA-fpcx-rqjq-9vj8.