SQL Injection in Shamimmoeen Wcapf – Ajax Product Filter For Woocommerce

CVE-2026-3396

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.

Vulnerability class: SQL Injection

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.017 (76.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 76th percentile — 76.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-3396: held from 0.015 to 0.017.

EPSS over last 30 days · oldest: 0.015 · newest: 0.017 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-3396?
CVE-2026-3396 is a high-severity vulnerability in Shamimmoeen Wcapf – Ajax Product Filter For Woocommerce, classified under SQL Injection. CVSS score: 7.5/10. Published 2026-04-08.
How severe is CVE-2026-3396?
High severity. CVSS v3 base score is 7.5 out of 10.