CVE-2021-47933

CRITICAL EPSS 43.7%
Published May 10, 20261mo ago · Modified Jun 17, 20261w ago
9.3 CVSS 4.0
Critical
Find Similar
Published May 10, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago

Description

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.

CVSS Details

Base Score
9.3
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
43.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-306 Missing Authentication for Critical Function Authentication

References 3

  • wordpress.org https://wordpress.org/plugins/mstore-api/
  • exploit-db.com https://www.exploit-db.com/exploits/50379
  • vulncheck.com https://www.vulncheck.com/advisories/wordpress-mstore-api-arbitrary-file-upload

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.