CVE-2025-12673CRITICAL 9.8EPSS p45.4%

CVE-2025-12673CVE-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.

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
EPSS0.63% probability of exploitation · percentile 45.4% · 2026-06-19T12:03:05Z
Published2025-12-06
Last modified2026-04-15

Underlying weaknesses· 1

CWE-434

References

  1. https://github.com/d0n601/CVE-2025-12673
  2. https://plugins.trac.wordpress.org/browser/flex-qr-code-generator/trunk/qr-code-generator.php#L457
  3. https://plugins.trac.wordpress.org/changeset/3412218
  4. https://ryankozak.com/posts/cve-2025-12673/
  5. https://www.wordfence.com/threat-intel/vulnerabilities/id/3d71404e-0db8-485b-a626-5e0df2076c05?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-2025-10041
CVE
CVE-2025-12153
CVE
CVE-2025-9113
CVE
CVE-2025-12154
CVE
CVE-2025-10647
CVE
CVE-2025-9112
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.