CVE-2021-27983

Remote Code Execution (RCE) vulnerability exists in MaxSite CMS v107.5 via the Documents page

published December 10, 2021

CVSS
—
EPSS
4%
Percentile
89.4
In the wild
Unconfirmed
What it is

🚨 A crafty vulnerability in MaxSite CMS v107.5 could let attackers execute remote code through a single compromised file on the Documents page! Think of it as a restaurant where a customer can sneak in a dish that wasn’t on the menu. If the kitchen is too trusting, they might cook it up and serve it to everyone, potentially poisoning the entire dining experience! This vulnerability could allow an attacker to send malicious code that the server would execute, leading to unauthorized access, data theft, or even complete control of the site. The consequences could be absolutely devastating for any website relying on this CMS — a full-blown digital disaster!

Put simply

Think of it as a restaurant where a customer can sneak in a dish that wasn’t on the menu. If the kitchen is too trusting, they might cook it up and serve it to everyone, potentially poisoning the entire dining experience! This Remote Code Execution (RCE) vulnerability is triggered through the Documents page, allowing attackers to upload and execute malicious scripts without proper authentication or file validation.

What to do

This vulnerability could allow an attacker to send malicious code that the server would execute, leading to unauthorized access, data theft, or even complete control of the site. The consequences could be absolutely devastating for any website relying on this CMS — a full-blown digital disaster! To mitigate this risk, immediately upgrade to the latest version of MaxSite CMS. Additionally, implement strict file validation on user uploads and regularly audit your security settings to ensure they're robust against such threats. You've got this! Stay proactive, and with these steps, you'll have your site locked down in no time. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.03585 · 89.4th percentile
Published
2021-12-10T18:14Z
EPSS history
Timeline
  • 10 DEC 18:14Z
    Remote Code Execution (RCE) vulnerability exists in MaxSite CMS v107.5 via the Documents page
    cvelistv5