CVE-2021-46386

File upload vulnerability in mingSoft MCMS through 5.2.5, allows remote attackers to execute arbitrary code via a crafted jspx webshell to…

published January 26, 2022

CVSS
—
EPSS
3%
Percentile
87.7
In the wild
Unconfirmed
What it is

⚠️ A crafty crafted JSPX webshell could sneak right into mingSoft MCMS, exploiting a file upload vulnerability in versions up to 5.2.5! Think of it like a restaurant allowing any dish to be ordered, even if it's not on the menu—without any checks, who knows what kind of chaos might ensue in the kitchen? An attacker could upload their own malicious code, turning your server into a playground for their whims! This means they could potentially access sensitive data, corrupt your system, or even launch attacks on other servers. Yikes!

Put simply

Think of it like a restaurant allowing any dish to be ordered, even if it's not on the menu—without any checks, who knows what kind of chaos might ensue in the kitchen? This vulnerability stems from an inadequate validation during file uploads in mingSoft MCMS, allowing remote attackers to upload arbitrary JSPX files via the FileAction#upload endpoint.

What to do

An attacker could upload their own malicious code, turning your server into a playground for their whims! This means they could potentially access sensitive data, corrupt your system, or even launch attacks on other servers. Yikes! To safeguard your system, patch mingSoft MCMS to version 5.2.6 or higher immediately. Additionally, implement stricter file validation to only allow specific file types and extensions. Audit your existing uploads to ensure no malicious files are lurking! You've got this! Follow these steps and you'll have your security locked down in no time! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03111 · 87.7th percentile
Published
2022-01-26T00:00Z
EPSS history
Timeline
  • 26 JAN 00:00Z
    File upload vulnerability in mingSoft MCMS through 5.2.5, allows remote attackers to execute arbitrary code via a crafted jspx webshell to…
    cvelistv5