CVE-2023-25655CWE-434

baserCMS allows any file to be uploaded

Critical · published March 23, 2023

CVSS v3.1
9.8
EPSS
1%
Percentile
65.1
In the wild
Unconfirmed
What it is

🚨 Oh no! Before version 4.7.5, baserCMS could allow anyone to upload any file they wanted—think of it as an open door to a digital treasure chest! 🔥 It's like a restaurant that lets diners bring in any dish they want to serve without checking the recipes—dangerous if someone decides to slip in something toxic! The consequences are absolutely devastating. An attacker could easily upload malicious files, potentially compromising sensitive data, taking over the server, or even executing arbitrary code. The damage could range from data breaches to full system takeovers—yikes!

Put simply

It's like a restaurant that lets diners bring in any dish they want to serve without checking the recipes—dangerous if someone decides to slip in something toxic! This vulnerability allows unrestricted file uploads, meaning an attacker can upload files without any restrictions, leading to potential exploitation of the server.

What to do

The consequences are absolutely devastating. An attacker could easily upload malicious files, potentially compromising sensitive data, taking over the server, or even executing arbitrary code. The damage could range from data breaches to full system takeovers—yikes! Upgrade to version 4.7.5 immediately to close this glaring hole. Implement strict file validation to ensure only permitted file types are allowed in the future. Regularly review and audit your upload configurations! This is fixable! Follow these steps, and you'll be back in secure territory in no time. 🛡️

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
0.01089 · 65.1th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2023-03-23T19:23Z
EPSS history
Timeline
  • 23 MAR 19:23Z
    baserCMS allows any file to be uploaded
    cvelistv5