CVE-2023-28409

Unrestricted upload of file with dangerous type exists in MW WP Form versions v4.4.2 and earlier, which may allow a remote unauthenticated attacker to upload…

Critical · published May 23, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
68.6
In the wild
Unconfirmed
What it is

🚨 An unrestricted file upload vulnerability lets attackers slip harmful files into your system without a care in the world! 🔥 Think of it like a restaurant where anyone can bring in their own food—imagine if someone sneaks in a dish that could spoil the entire meal for everyone. In this case, a malicious user can upload any file they want, including executable scripts that could wreak havoc. If exploited, this vulnerability could lead to remote code execution, allowing attackers to run arbitrary code on your server. This means they could steal sensitive data, manipulate your site, or even take complete control over your server, leading to catastrophic consequences for your business.

Put simply

Think of it like a restaurant where anyone can bring in their own food—imagine if someone sneaks in a dish that could spoil the entire meal for everyone. In this case, a malicious user can upload any file they want, including executable scripts that could wreak havoc. This vulnerability exists in MW WP Form versions v4.4.2 and earlier due to the lack of restrictions on file uploads, making it possible for unauthenticated users to upload arbitrary files directly on the server.

What to do

If exploited, this vulnerability could lead to remote code execution, allowing attackers to run arbitrary code on your server. This means they could steal sensitive data, manipulate your site, or even take complete control over your server, leading to catastrophic consequences for your business. To protect yourself, immediately update MW WP Form to the latest version. Additionally, implement strict validation checks on file uploads to ensure that only safe file types are allowed. Don't forget to regularly audit your file upload processes! You've got this! By following these steps, you can secure your site and keep those sneaky uploads at bay. 🛡️

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
0.01226 · 68.6th percentile
Published
2023-05-23T00:00Z
EPSS history
Timeline
  • 23 MAY 00:00Z
    Unrestricted upload of file with dangerous type exists in MW WP Form versions v4.4.2 and earlier, which may allow a remote unauthenticated attacker to upload…
    cvelistv5