EUVD-2026-20453
GHSA-qwrq-9cw3-gcpq
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Lifecycle Timeline
3Description
WCAPF - WooCommerce Ajax Product Filter plugin is vulnerable to time-based SQL Injection via the 'post-author' parameter in all versions up to, and including, 4.2.3 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Analysis
Time-based SQL injection in WCAPF (WooCommerce Ajax Product Filter) WordPress plugin versions up to 4.2.3 allows unauthenticated remote attackers to extract sensitive database information via the 'post-author' parameter. The vulnerability stems from inadequate input sanitization and SQL query preparation, enabling attackers to append malicious SQL commands to existing queries. …
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Remediation
Within 24 hours: Identify all WordPress sites using WCAPF plugin and document current versions via admin dashboard or WP-CLI; disable or deactivate WCAPF on all installations. Within 7 days: evaluate alternative product filter solutions and begin migration testing in staging environment; implement Web Application Firewall rules to block SQL injection patterns targeting the 'post-author' parameter. …
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External POC / Exploit Code
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