CVE-2025-12673
Flex QR Code Generator <= 1.2.7 - Unauthenticated Arbitrary File Upload
CVSS Score
9.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-434 |
| Vendor | ajitdas |
| Product | flex qr code generator |
| Published | Dec 6, 2025 |
| Last Updated | Apr 8, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
ajitdas / Flex QR Code Generator
0 ≤ 1.2.7
References
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/3d71404e-0db8-485b-a626-5e0df2076c05?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/flex-qr-code-generator/trunk/qr-code-generator.php#L457 ryankozak.com: https://ryankozak.com/posts/cve-2025-12673/ github.com: https://github.com/d0n601/CVE-2025-12673 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3412218
Credits
Ryan Kozak