shamimmoeen WCAPF Plugin up to 4.2.3 on WordPress post-author sql injection

Summaryinfo

A vulnerability was found in shamimmoeen WCAPF Plugin up to 4.2.3 on WordPress. It has been declared as critical. This impacts an unknown function. Such manipulation of the argument post-author leads to sql injection. This vulnerability is uniquely identified as CVE-2026-3396. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in shamimmoeen WCAPF Plugin up to 4.2.3 on WordPress. Affected by this issue is some unknown processing. The manipulation of the argument post-author with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was disclosed by Youssef Elouaer. The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-3396 since 02/28/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/08/2026). This vulnerability is assigned to T1505 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• shamimmoeen

Name

• WCAPF Plugin

Version

• 4.2.0
• 4.2.1
• 4.2.2
• 4.2.3

CPE 2.3info

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CPE 2.2info

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