CVE-2026-3891CRITICAL 9.8EPSS p53.2%

CVE-2026-3891CVE-2026-3891

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.

Scoring

CVSS 3.19.8 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS0.84% probability of exploitation · percentile 53.2% · 2026-06-19T12:03:05Z
Published2026-03-13
Last modified2026-04-22

Underlying weaknesses· 1

CWE-434

References

  1. https://plugins.trac.wordpress.org/browser/payment-gateway-pix-for-woocommerce/tags/1.4.0/Includes/LknPaymentPixForWoocommercePixC6.php#L694
  2. https://plugins.trac.wordpress.org/changeset/3480639/payment-gateway-pix-for-woocommerce#file56
  3. https://www.wordfence.com/threat-intel/vulnerabilities/id/20188fd3-c330-4c76-912b-72731e14c450?source=cve

1

TypeTargetConfidenceTier
WeaknessUnrestricted Upload of File with Dangerous Typecwe-4340%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

CVE
CVE-2025-13329
CVE
CVE-2025-4403
CVE
CVE-2025-13156
CVE
CVE-2025-4413
CVE
CVE-2025-11391
CVE
CVE-2025-15158
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.