What’s Vulnerable › Vulnerabilities

CVE-2026-3396: WCAPF – WooCommerce Ajax Product Filter <= 4.2.3 - Unauthenticated Time-Based SQL Injection

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-04-08 · updated 2026-07-24
• Weakness: CWE-89

Description

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.

Affected products

• shamimmoeen WCAPF – Ajax Product Filter for WooCommerce: through 4.2.3

References

• https://plugins.trac.wordpress.org/browser/wc-ajax-product-filter/trunk/includes/class-wcapf-product-filter.php#L65
• https://plugins.trac.wordpress.org/browser/wc-ajax-product-filter/trunk/includes/class-wcapf-product-filter.php#L689
• https://plugins.trac.wordpress.org/browser/wc-ajax-product-filter/trunk/includes/class-wcapf-product-filter.php#L739
• https://plugins.trac.wordpress.org/browser/wc-ajax-product-filter/trunk/includes/class-wcapf-product-filter.php#L81
• https://plugins.trac.wordpress.org/changeset/3484080/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/ee0a762e-9159-4dab-a7be-9cbe332effb1?source=cve

Get alerted when CVE-2026-3396 or the next vulnerability affects your stack