Critical severity9.8NVD Advisory· Published Dec 6, 2025· Updated Apr 15, 2026

CVE-2025-12673

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

WordPress/Flex Qr Code Generatorllm-fuzzy
Range: <=1.2.7
Package: https://wordpress.org/plugins/flex-qr-code-generator

Patches

Vulnerability mechanics

References

plugins.trac.wordpress.org/browser/flex-qr-code-generator/trunk/qr-code-generator.phpnvd
plugins.trac.wordpress.org/changeset/3412218nvd
ryankozak.com/posts/cve-2025-12673/nvd
www.wordfence.com/threat-intel/vulnerabilities/id/3d71404e-0db8-485b-a626-5e0df2076c05nvd

News mentions

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cvss	0.637
epss	0.001
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000