CVE-2021-24212CWE-434

WooCommerce Help Scout < 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCE

published April 5, 2021

CVSS
—
EPSS
8%
Percentile
94.7
In the wild
Unconfirmed
What it is

⚠️ An unauthenticated user can upload any file to your WooCommerce site! Imagine someone dumping their beach vacation photos in your library without asking — except this time, it could be a malicious file. 😱 Think of it like a guest arriving at a hotel and being allowed to put anything they want in a shared storage area without any oversight. If the hotel staff doesn’t check what's being stored, who knows what kind of surprises could be lurking in there! This vulnerability can lead to potential file uploads that could compromise your server, allowing an attacker to execute harmful scripts or engage in other nefarious activities that may put your site’s data and users at risk. It’s like leaving the backdoor wide open for troublemakers with bad intentions!

Put simply

Think of it like a guest arriving at a hotel and being allowed to put anything they want in a shared storage area without any oversight. If the hotel staff doesn’t check what's being stored, who knows what kind of surprises could be lurking in there! The WooCommerce Help Scout plugin before version 2.9.1 fails to authenticate users before allowing file uploads, which enables unauthenticated users to upload arbitrary files to the server’s wp-content/uploads/hstmp directory.

What to do

This vulnerability can lead to potential file uploads that could compromise your server, allowing an attacker to execute harmful scripts or engage in other nefarious activities that may put your site’s data and users at risk. It’s like leaving the backdoor wide open for troublemakers with bad intentions! Update the WooCommerce Help Scout plugin to version 2.9.1 or later immediately to close this security gap. Additionally, consider reviewing your file upload configurations to ensure only safe file types are accepted. Implementing further restrictions on user permissions can also help bolster your defenses. This is fixable! Update your plugin and lock it down to keep your site secure. You've got this! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.07908 · 94.7th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2021-04-05T18:27Z
EPSS history
Timeline
  • 05 APR 18:27Z
    WooCommerce Help Scout < 2.9.1 - Unauthenticated Arbitrary File Upload leading to RCE
    cvelistv5