CVE-2021-47933CWE-306

WordPress MStore API 2.0.6 Arbitrary File Upload

Critical · published May 10, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
47.3
In the wild
Unconfirmed
What it is

WordPress MStore API 2.0.6 contains an arbitrary file upload vulnerability that allows unauthenticated attackers to upload malicious files by sending POST requests to the REST API endpoint. Attackers can upload PHP files with arbitrary names to the config_file endpoint to achieve remote code execution on the server.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00587 · 47.3th percentile
Weakness
CWE-306 · Missing Authentication for Critical Function
Published
2026-05-10T12:43Z
EPSS history
Timeline
  • 10 MAY 12:43Z
    WordPress MStore API 2.0.6 Arbitrary File Upload
    cvelistv5