CVE-2025-13145: WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress · Deserialization of Untrusted Data
Affects WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPressSource CVE Database V5
Not known to be exploited · CVSS 7.2 High.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 19 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| smackcoders WP Ultimate CSV Importer – Import CSV, XML & Excel into WordPress | Affected
| Fixed in– |
AI-suggested
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.
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.
References
- wordfence.com/threat-intel/vulnerabilities/id/5e441699-4c78-4277-8ac1-f33b810e78cb?source=cve (opens in a new tab)
- plugins.trac.wordpress.org/browser/wp-ultimate-csv-importer/trunk/SingleImportExport.php (opens in a new tab)
- plugins.trac.wordpress.org/changeset/3397842/wp-ultimate-csv-importer/trunk/SingleImportExport.php (opens in a new tab)