CVE-2021-4455CWE-434

Wordpress Plugin Smart Product Review <= 1.0.4 - Unauthenticated Arbitrary File Upload

Critical · published April 19, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
56.4
In the wild
Unconfirmed
What it is

🚨 An unchecked upload feature is the gateway for chaos! The Smart Product Review plugin for WordPress lacks file type validation, leaving the door wide open for attackers! 🔥 Think of it like a restaurant that lets anyone walk in and drop off any kind of food without a proper inspection — you might end up with something seriously spoiled in the kitchen! An attacker could upload malicious files, potentially leading to full remote code execution on your server. This could allow them to access sensitive data, manipulate site content, or even take over the entire site! It's absolutely devastating if exploited.

Put simply

Think of it like a restaurant that lets anyone walk in and drop off any kind of food without a proper inspection — you might end up with something seriously spoiled in the kitchen! The vulnerability in the Smart Product Review plugin allows unauthenticated users to upload arbitrary files due to missing file type validation. This means any file type can be uploaded, paving the way for malicious scripts to be executed on the server.

What to do

An attacker could upload malicious files, potentially leading to full remote code execution on your server. This could allow them to access sensitive data, manipulate site content, or even take over the entire site! It's absolutely devastating if exploited. Immediately update the Smart Product Review plugin to version 1.0.5 or later. Additionally, implement strict file type validation and consider limiting upload privileges to authenticated users to enhance security. You've got this! With these steps, you'll keep your site safe and sound! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00807 · 56.4th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2025-04-19T07:23Z
EPSS history
Timeline
  • 19 APR 07:23Z
    Wordpress Plugin Smart Product Review <= 1.0.4 - Unauthenticated Arbitrary File Upload
    cvelistv5