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.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

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
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