Critical · published November 28, 2023
CVSS calls it critical at 9.8. It sits in the 99.4th percentile for exploit probability.
🚨 Just a few unexpected characters are all it takes for an attacker to execute malicious code on your Chamilo LMS server! 🔥 Think of this like a restaurant where a customer can place an order using a secret code that skips the menu — if no one checks what’s being said, they can literally ask for anything from the kitchen! 🍽️ An unauthenticated attacker could gain full control over your server, allowing them to modify or delete crucial data, disrupt services, or even operate in stealth mode. This vulnerability can lead to a catastrophic breach, leaving your entire education platform exposed!
Think of this like a restaurant where a customer can place an order using a secret code that skips the menu — if no one checks what’s being said, they can literally ask for anything from the kitchen! 🍽️ This command injection vulnerability in `/main/webservices/additional_webservices.php` lets attackers bypass security checks through improper handling of special characters, effectively enabling remote code execution without any authentication. It’s a critical flaw that allows exploitation of your system without needing to log in.
An unauthenticated attacker could gain full control over your server, allowing them to modify or delete crucial data, disrupt services, or even operate in stealth mode. This vulnerability can lead to a catastrophic breach, leaving your entire education platform exposed! Immediately patch your Chamilo LMS to version 1.11.21 or later to close this gap. Review your code for proper validation of inputs and consider implementing additional layers of security, such as a web application firewall. Don't wait — act now! You've got this! With just a few steps, you can safeguard your platform against these sneaky attacks! 🛡️