high CVSS 7.2 EPSS 0.82%

CVE-2025-1913·PHP vulnerability

The Product Import Export for WooCommerce – Import Export Product CSV Suite plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 2.5.0 via deserialization of untrusted input from the 'form_data' parameter This makes it possible for authenticated attackers, with Administrator-level access and above, to inject a PHP Object. No known POP chain is present in the vulnerable software, which means this vulnerability has no impact unless another plugin or theme containing a POP chain is installed on the site. If a POP chain is present via an additional plugin or theme installed on the target system, it may allow the attacker to perform actions like delete arbitrary files, retrieve sensitive data, or execute code depending on the POP chain present.

Severity
high
Software
PHP
Fixed in
2.5.1
Published

How likely is exploitation

FIRST's Exploit Prediction Scoring System puts the probability of this CVE being exploited in the next 30 days at 0.82% — higher than 53% of all published CVEs. EPSS is an independent forecast of exploitation, not a severity rating: it says nothing about how much damage a successful attack does, which is what a CVSS score measures.

Read the two together. CVE-2025-1913 scores 7.2 on CVSS, so a successful attack would be serious — but at 0.82%, almost nobody is currently attempting it. That is a different situation from a flaw under mass exploitation, and it is usually the difference between patching on your next maintenance window and patching tonight.

Affected versions

Until: 2.5.1

Fixed in: 2.5.1

How to fix this CVE

WordPress administrators running the Product Import Export for WooCommerce plugin must immediately update to version 2.5.1 or later to patch the PHP Object Injection vulnerability in the form_data parameter. While exploitation requires administrator-level access and an additional plugin or theme with a usable POP chain, the risk of arbitrary file deletion, data exfiltration, or code execution is severe. Audit your WordPress plugin and theme installations for gadget chains and review recent administrator actions in your audit logs.

sudo dnf check-update php && sudo dnf upgrade php php-common php-cli php-fpm

Defensia detects this vulnerability

WAF mitigation (if patching is not yet possible)

Add this rule to your WAF to block exploitation attempts while you schedule the patch. 

If accessible, implement a WAF rule to block POST requests to /wp-admin/admin-ajax.php?action=* containing the form_data parameter with serialized object patterns (regex: '^O:\d+:' or 'O:\d+:"' in the parameter value). Restrict access to wp-admin to trusted IP ranges and enforce multi-factor authentication for administrator accounts.

How to check if you are affected

  1. Step 1: Check the installed Product Import Export for WooCommerce plugin version: In WordPress admin dashboard, navigate to Plugins and locate 'Product Import Export for Woo'; verify the version number is 2.5.1 or higher.
  2. Step 2: Inspect the plugin file at wp-content/plugins/product-import-export-for-woo/admin/modules/import/classes/class-import-ajax.php for deserialization calls on the 'form_data' POST parameter.
  3. Step 3: Search WordPress audit logs and web server access logs for POST requests to /wp-admin/admin-ajax.php?action=* containing serialized object patterns (strings starting with 'O:' or 'a:') in the form_data parameter, particularly from administrator accounts.
  4. Step 4: After updating to version 2.5.1, verify the fix by checking the plugin changelog at plugins.trac.wordpress.org/changeset/3261194/ and confirm the deserialization logic has been removed or sanitized.

FAQ

What is CVE-2025-1913?

CVE-2025-1913 is a PHP Object Injection vulnerability in the Product Import Export for WooCommerce plugin that allows attackers with administrator credentials to inject malicious serialized objects via the form_data parameter. The vulnerability only has real impact if another WordPress plugin or theme on the same site contains a usable gadget chain (POP chain) that can be leveraged for file operations or code execution.

Is CVE-2025-1913 being actively exploited?

No, CVE-2025-1913 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog and has no confirmed public exploits available, though proof-of-concept code exists on GitHub.

What versions of the Product Import Export for WooCommerce plugin are affected by CVE-2025-1913?

All versions up to and including 2.5.0 are vulnerable. The vulnerability is patched in version 2.5.1 and later.

How do I check if my WordPress site is vulnerable to CVE-2025-1913?

Log into your WordPress dashboard, go to Plugins, and check the version of 'Product Import Export for Woo'. If it shows 2.5.0 or lower, your site is vulnerable. You can also run: `grep 'Version:' wp-content/plugins/product-import-export-for-woo/product-import-export-for-woo.php` from your WordPress root directory.

Does Defensia detect CVE-2025-1913?

Yes — Defensia's CVE advisory scanner compares installed WordPress plugin versions against the NVD database. If the Product Import Export for WooCommerce plugin is installed on a monitored WordPress server, CVE-2025-1913 will appear in your dashboard with remediation steps and patch recommendations.

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References

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