CVE-2026-3891
Pix for WooCommerce <= 1.5.0 - Unauthenticated Arbitrary File Upload
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-434 |
| Vendor | linknacional |
| Product | pix for woocommerce |
| Published | Mar 13, 2026 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
linknacional / Pix for WooCommerce
0 ≤ 1.5.0
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/20188fd3-c330-4c76-912b-72731e14c450?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/payment-gateway-pix-for-woocommerce/tags/1.4.0/Includes/LknPaymentPixForWoocommercePixC6.php#L694 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3480639/payment-gateway-pix-for-woocommerce#file56
Credits
Alexis Lafontaine