Is CVE-2026-3891 actively exploited?

No active exploitation of CVE-2026-3891 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-3891 be exploited remotely?

Yes. CVE-2026-3891 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-3891?

CVE-2026-3891 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2026-3891

CRITICAL

CVE-2026-3891

CWE-434Published: March 13, 2026· Updated: Mar 16, 2026

9.8

CVSS v3.1

EPSS:0.13%probability of exploitation in 30 daysPercentile:32.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-3891 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.