CVE-2025-13145: CWE-502 Deserialization of Untrusted Data in smackcoders WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress
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.
AI Analysis
Technical Summary
CVE-2025-13145 is a high-severity vulnerability in the WP Ultimate CSV Importer WordPress plugin caused by unsafe deserialization (CWE-502) of untrusted data during CSV file import. The vulnerability exists in the import_single_post_as_csv function within SingleImportExport.php, allowing authenticated administrators to inject PHP objects. Exploitation depends on the presence of a suitable POP (Property Oriented Programming) chain in other plugins or themes, which could enable critical impacts such as arbitrary file deletion, sensitive data retrieval, or code execution.
Potential Impact
Successful exploitation requires administrator-level access and can lead to full compromise of the WordPress site, including code execution, data theft, or file deletion. The vulnerability has a CVSS 3.1 score of 7.2, reflecting high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrator access to trusted users only and avoid importing CSV files from untrusted sources. Monitor the vendor's communications for updates on patches or official fixes.
CVE-2025-13145: CWE-502 Deserialization of Untrusted Data in smackcoders WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2025-13145 is a high-severity vulnerability in the WP Ultimate CSV Importer WordPress plugin caused by unsafe deserialization (CWE-502) of untrusted data during CSV file import. The vulnerability exists in the import_single_post_as_csv function within SingleImportExport.php, allowing authenticated administrators to inject PHP objects. Exploitation depends on the presence of a suitable POP (Property Oriented Programming) chain in other plugins or themes, which could enable critical impacts such as arbitrary file deletion, sensitive data retrieval, or code execution.
Potential Impact
Successful exploitation requires administrator-level access and can lead to full compromise of the WordPress site, including code execution, data theft, or file deletion. The vulnerability has a CVSS 3.1 score of 7.2, reflecting high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict administrator access to trusted users only and avoid importing CSV files from untrusted sources. Monitor the vendor's communications for updates on patches or official fixes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Wordfence
- Date Reserved
- 2025-11-13T19:07:19.403Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 691d6898a27e6d5e91bc24d2
Added to database: 11/19/2025, 6:50:00 AM
Last enriched: 4/9/2026, 4:26:54 PM
Last updated: 5/10/2026, 2:39:53 AM
Views: 117
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