CVE-2025-66203CWE-78command-injection

CVE-2025-66203

Critical · published December 27, 2025

CVSS v3.1
9.9
EPSS
1%
Percentile
55.5
In the wild
Unconfirmed
What it is

🚨 A sneaky flaw in StreamVault’s configuration process opens the door wide for Remote Code Execution! 🔥 Think of it like a restaurant where patrons can write their own special orders without the chef checking the ingredients — some could request something totally bizarre or even dangerous! With this vulnerability, an attacker could craft a malicious script that gets executed on the server, potentially leading to data breaches, system manipulation, or even total control of the server. This is absolutely devastating for any organization using the application, as it puts sensitive data and infrastructure at serious risk!

Put simply

Think of it like a restaurant where patrons can write their own special orders without the chef checking the ingredients — some could request something totally bizarre or even dangerous! This Remote Code Execution vulnerability arises because StreamVault does not properly validate yt-dlp arguments configured via the /admin/api/saveConfig endpoint, allowing attackers to inject harmful commands into the application.

What to do

With this vulnerability, an attacker could craft a malicious script that gets executed on the server, potentially leading to data breaches, system manipulation, or even total control of the server. This is absolutely devastating for any organization using the application, as it puts sensitive data and infrastructure at serious risk! To protect yourself, upgrade to version 251126 immediately to patch this vulnerability. Additionally, review and restrict access to the /admin/api/saveConfig endpoint, ensuring only trusted administrators can modify configurations. Regularly audit your application for similar vulnerabilities as well! You've got this! Stay vigilant, follow these steps, and you'll have your environment secure in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00780 · 55.5th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2025-12-27T05:15Z
Affected products (1)
ProductVersionsFixed in
lemon8866/streamvault< 251126251126
References (2)
EPSS history
Timeline
  • 26 DEC 23:37Z
    StreamVault is Vulnerable to Authenticated Remote Code Execution (RCE) via ytdlpargs Configuration Injection
    cvelistv5