CVE-2026-3891

Pix for WooCommerce <= 1.5.0 - Unauthenticated Arbitrary File Upload

criticalUnrestricted Upload of File with Dangerous Type

9.8

CVSS Score

9.8

CVSS Score

critical

Severity

1.6.0

Patched in

Time to patch

Description

The Pix for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing capability check and missing file type validation in the 'lkn_pix_for_woocommerce_c6_save_settings' function in all versions up to, and including, 1.5.0. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

CVSS Vector Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

High

Confidentiality

High

Integrity

High

Availability

Technical Details

Affected versions<=1.5.0

PublishedMarch 12, 2026

Last updatedMarch 13, 2026

Affected pluginpayment-gateway-pix-for-woocommerce

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/20188fd3-c330-4c76-912b-72731e14c450?source=api-prod

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