Critical · published June 20, 2026
CVSS calls it critical at 10.0. It is confirmed in active exploitation. It sits in the 97.4th percentile for exploit probability.
🚨 A crafty upload in the iCagenda extension can turn your Joomla site into an attacker's playground! 🔥 Think of it like allowing guests to bring their own food to a restaurant without checking what’s in the containers. Just one unchecked dish could contain something harmful, like a secret recipe for disaster! With this vulnerability, an attacker could upload malicious PHP files that run on your server, leading to total control over your site. Imagine losing sensitive data, having your website defaced, or even worse—spreading malware to your visitors!
Think of it like allowing guests to bring their own food to a restaurant without checking what’s in the containers. Just one unchecked dish could contain something harmful, like a secret recipe for disaster! This critical vulnerability lets attackers upload arbitrary files via the iCagenda extension's file attachment feature. If successfully exploited, it allows the execution of PHP code on the server, paving the way for a full-blown takeover.
With this vulnerability, an attacker could upload malicious PHP files that run on your server, leading to total control over your site. Imagine losing sensitive data, having your website defaced, or even worse—spreading malware to your visitors! Immediately update the iCagenda extension to the latest version available. Review your current file upload settings to restrict file types and consider adding an additional layer of validation to ensure uploaded files are safe. 🛡️ You've got this! Following these steps will help you secure your Joomla site in no time. 💪✨