CVE-2021-47933

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 v4.0

9.3 CRITICALCVSS: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

CVSS v3.1

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.59% chance of exploitation in the next 30 days, 46th percentile

Published

2026-05-10

Updated

2026-05-11

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/50379

References

• CVE Record
• NVD entry

Related

• CVE-2021-47932
• CVE-2021-47934
• CVE-2021-47931
• CVE-2021-47935
• CVE-2021-47930
• CVE-2021-47936