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.
References (5)
Scores
CVSS v3
9.8
EPSS
0.0025
EPSS Percentile
47.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
total
Details
CWE
CWE-434
Status
published
Products (2)
ajitdas/Flex QR Code Generator
< 1.2.6
ajitdas/Flex QR Code Generator
< 1.2.7
Published
Dec 06, 2025
Tracked Since
Feb 18, 2026