Critical severity9.8NVD Advisory· Published Apr 19, 2025· Updated Apr 15, 2026

CVE-2021-4455

Description

The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

www.exploit-db.com/exploits/50533nvd
www.wordfence.com/threat-intel/vulnerabilities/id/1de9183c-95b9-4500-85e2-08dcee956360nvd

News mentions

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cvss	0.637
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000