Atlassian Stock Volume Plummets 35% Despite Stable Prices Amid Ransomware Attacks

On May 20, 2025, Atlassian (TEAM) experienced a significant decline in trading volume, with a 35.26% decrease from the previous day, resulting in a trading volume of 3.82 billion. Despite this, the stock price remained relatively stable, with a slight increase of 0.01%.

Hackers have been actively exploiting a critical vulnerability, CVE-2023-22527, in Atlassian Confluence servers. This template injection flaw allows attackers to execute arbitrary commands, deploy ransomware, and gain unauthorized access to systems. The ELPACO-team ransomware, a variant of Mimic ransomware, has been deployed in targeted attacks, encrypting files and demanding ransom payments. The attack involves multiple stages, including initial access, privilege escalation, lateral movement, and data encryption. The threat actors use tools like Metasploit, Mimikatz, and AnyDesk to maintain persistence and control over compromised systems. The impact of these attacks can be severe, leading to data loss, financial damage, and operational disruptions for affected organizations.