CVE-2023-34939

Onlyoffice Community Server before v12.5.2 was discovered to contain a remote code execution (RCE) vulnerability via the component UploadProgress.ashx

published June 22, 2023

CVSS
—
EPSS
5%
Percentile
92.3
In the wild
Unconfirmed
What it is

🚨 A crafty RCE vulnerability lurks in OnlyOffice Community Server before v12.5.2! An unauthorized upload could let an attacker run wild on your server. 🔥 Think of it like a restaurant where anyone can slip in a dish with a hidden ingredient that could sicken diners — if the chef isn’t checking those orders closely, disaster can strike! If exploited, an attacker could execute arbitrary code on your server, gaining control and potentially compromising sensitive data. This could lead to data breaches or service disruptions, leaving your system vulnerable and your reputation on the line!

Put simply

Think of it like a restaurant where anyone can slip in a dish with a hidden ingredient that could sicken diners — if the chef isn’t checking those orders closely, disaster can strike! The vulnerability arises from the UploadProgress.ashx component, which fails to properly validate uploads, allowing attackers to inject malicious code. Essentially, it’s a flaw in how the server handles incoming files, making it a ripe target for exploitation.

What to do

If exploited, an attacker could execute arbitrary code on your server, gaining control and potentially compromising sensitive data. This could lead to data breaches or service disruptions, leaving your system vulnerable and your reputation on the line! Immediately upgrade to version 12.5.2 to patch this vulnerability. Additionally, review your upload handling processes and consider implementing more stringent validation checks to ensure file integrity. Regular audits can help catch similar issues in the future! You've got this! With a quick update, you'll secure your system and protect your data! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.05033 · 92.3th percentile
Published
2023-06-22T00:00Z
EPSS history
Timeline
  • 22 JUN 00:00Z
    Onlyoffice Community Server before v12.5.2 was discovered to contain a remote code execution (RCE) vulnerability via the component UploadProgress.ashx
    cvelistv5