CVE-2025-67728CWE-77command-injection

CVE-2025-67728

Critical · published December 12, 2025

CVSS v3.1
9.8
EPSS
1%
Percentile
52.1
In the wild
Unconfirmed
What it is

🔥 An authenticated user can craft a malicious filename to execute arbitrary commands on your server—just by uploading a video! Think of it like a sneaky delivery driver who slips a package with an incorrect label into your mailroom, allowing them to access sensitive areas of the building. This vulnerability doesn’t just let the driver in; it hands them the keys to the entire operation! An attacker could upload a file that not only penetrates the system but can also run dangerous commands. This can lead to full remote code execution (RCE), potentially compromising your entire server and accessing sensitive data. The impact could be absolutely devastating, as it opens the door for attackers to manipulate and even destroy critical assets.

Put simply

Think of it like a sneaky delivery driver who slips a package with an incorrect label into your mailroom, allowing them to access sensitive areas of the building. This vulnerability doesn’t just let the driver in; it hands them the keys to the entire operation! CVE-2025-67728 allows attackers to exploit a path traversal vulnerability in Fireshare by uploading malicious filenames that are directly concatenated into shell commands, enabling them to execute arbitrary system commands on affected versions (1.2.30 and below).

What to do

An attacker could upload a file that not only penetrates the system but can also run dangerous commands. This can lead to full remote code execution (RCE), potentially compromising your entire server and accessing sensitive data. The impact could be absolutely devastating, as it opens the door for attackers to manipulate and even destroy critical assets. To secure your system, upgrade to Fireshare version 1.3.0 immediately. Additionally, review your file upload settings, ensuring that public uploads are always treated with caution, and consider implementing file name validation to prevent this kind of exploitation. You've got this! Follow these steps and become the hero your server needs! 🛡️

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
0.00686 · 52.1th percentile
Weakness
CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
Published
2025-12-12T12:15Z
Affected products (1)
ProductVersionsFixed in
shaneisrael/fireshare< 1.3.01.3.0
References (2)
EPSS history
Timeline
  • 12 DEC 07:10Z
    Fireshare Public Uploads feature is vulnerable to OS Command Injection (RCE)
    cvelistv5