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CVE-2026-95601 – Unauthenticated SQL Injection – Product Filter by WBW WordPress Plugin ≤ 3.1.7

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Summary

CVE-2026-95601 is a critical, unauthenticated SQL injection vulnerability in the Product Filter by WBW WordPress plugin, affecting all versions up to and including 3.1.7. The flaw allows a remote, unauthenticated attacker to inject arbitrary SQL through the plugin’s filtering functionality, potentially exposing the entire WordPress database. It carries a CVSS v3.1 base score of 9.3 (Critical).

Technical details

  • Root cause: The plugin fails to properly sanitize and escape a user-supplied parameter before using it in a SQL query.
  • Trigger conditions: No authentication or user interaction is required; the vulnerable parameter can be reached by any unauthenticated visitor to the site.
  • Attack vector: Network — the vulnerable endpoint is exposed on the public-facing WordPress/WooCommerce site wherever the plugin’s product filter functionality is active.
  • Impact: Successful exploitation can allow an attacker to read sensitive data from the WordPress database (including user accounts and private data); the CVSS vector also reflects a low availability impact.

Affected software

  • Product Filter by WBW (WordPress/WooCommerce plugin, formerly "Product Filter for WooCommerce by WBW") — all versions <= 3.1.7

Severity

  • CVSS v3.1 Base Score: 9.3 (Critical)
  • Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:L

Mitigation and recommended actions

  • Immediate: Update the Product Filter by WBW plugin to version 3.1.8 or later, where the SQL injection has been fixed.
  • If patching is not immediately possible: Consider disabling or removing the plugin until it can be updated, and deploy a web application firewall (WAF) rule to block SQL injection patterns targeting the plugin’s filter parameters as a temporary compensating control.

References

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