CVE-2025-12673

The Flex QR Code Generator plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the update_qr_code() function in all versions up to, and including, 1.2.7. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Affected products

Flex Qr Code Generator

Fix

Available

CVSS 3.1

9.8 CRITICAL

EPSS

0.7% (52th percentile)

Weakness

CWE-434

NVD status

Deferred

Published

2025-12-06