Critical · published April 10, 2025
CVSS calls it critical at 9.0. It is confirmed in active exploitation. It sits in the 99.8th percentile for exploit probability.
🚨 Yii 2 is playing a dangerous game with behavior attachment! A critical flaw in versions before 2.0.52 allows attackers to exploit this mishandling, leading to devastating consequences. 🔥 Think of it as a hotel using a faulty system to assign room keys based on unsorted guest lists. If the wrong information gets in, anyone could waltz into any room, compromising your privacy and security! An attacker could gain unauthorized access to sensitive areas of your application, potentially leading to data leaks, unauthorized changes, or even complete system takeover. This is absolutely devastating for any organization relying on Yii 2 to safeguard their assets!
Think of it as a hotel using a faulty system to assign room keys based on unsorted guest lists. If the wrong information gets in, anyone could waltz into any room, compromising your privacy and security! This vulnerability occurs when Yii 2 improperly handles the attaching of behavior defined by an __class array key, stemming from a regression issue linked to CVE-2024-4990. Attackers can exploit this flaw to execute unauthorized actions within the application.
An attacker could gain unauthorized access to sensitive areas of your application, potentially leading to data leaks, unauthorized changes, or even complete system takeover. This is absolutely devastating for any organization relying on Yii 2 to safeguard their assets! Immediately update Yii 2 to version 2.0.52 or later to close this vulnerability. Review your application's behavior attachments for any unusual changes and audit your logs for suspicious activity. Don't delay on this one! You've got this! Patch up and secure your application like the security hero you are! 🛡️