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CRITICAL

CVE-2026-3891

CVSS v3

9.8

CRITICAL

EPSS Score

29.7 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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.

Technical details

Published
2026-03-13
Exploit-DB
EDB-52642

Frequently asked questions

What is CVE-2026-3891?

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.

Is CVE-2026-3891 actively exploited?

Active exploitation of CVE-2026-3891 has not been confirmed. Its EPSS score was 29.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

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

CVE-2026-3891 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2026-3891 affecting your environment?

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