CVE-2025-13231
Unknown Unknown - Not Provided
TOCTOU SSRF Vulnerability in Fancy Product Designer Plugin

Publication date: 2025-12-16

Last updated on: 2025-12-16

Assigner: Wordfence

Description
The Fancy Product Designer plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 6.4.8. This is due to a time-of-check/time-of-use (TOCTOU) race condition in the 'url' parameter of the fpd_custom_uplod_file AJAX action. The plugin validates the URL by calling getimagesize() first, then later retrieves the same URL using file_get_contents(). This makes it possible for unauthenticated attackers to exploit the timing gap to perform SSRF attacks by serving a valid image during validation, then changing the response to redirect to arbitrary internal or external URLs during the actual fetch.
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Meta Information
Published
2025-12-16
Last Modified
2025-12-16
Generated
2026-06-16
AI Q&A
2025-12-16
EPSS Evaluated
2026-06-14
NVD
CVE-2025-13231
EUVD
EUVD-2025-203530
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
wordpress fancy_product_designer 6.4.8
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-362 The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
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Executive Summary

This vulnerability is a Server-Side Request Forgery (SSRF) in the Fancy Product Designer WordPress plugin versions up to 6.4.8. It arises from a time-of-check/time-of-use (TOCTOU) race condition in the 'url' parameter of the fpd_custom_uplod_file AJAX action. The plugin first validates the URL by calling getimagesize(), then later fetches the same URL using file_get_contents(). An attacker can exploit the timing gap by serving a valid image during validation and then changing the response to redirect to arbitrary internal or external URLs during the actual fetch, allowing SSRF attacks.

Impact Analysis

This vulnerability can allow unauthenticated attackers to perform SSRF attacks, potentially enabling them to access internal or external resources that should be protected. This can lead to information disclosure or unauthorized interactions with internal systems, impacting the confidentiality and integrity of your environment.

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