Critical · published April 18, 2023
CVSS calls it critical at 10.0. It sits in the 99.5th percentile for exploit probability.
🚨 A user with no programming rights can unleash Groovy scripts on the server! That's right, a simple edit to their profile can turn them into a server-side magician! 🔥 Imagine a hotel receptionist who can sneak into the management office and change the guest list at will — that’s the kind of access this vulnerability provides! Anyone can book a suite, but suddenly, anyone can change their room or even access secure areas without proper permissions. An attacker could execute arbitrary Groovy code on the server, potentially leading to data breaches, unauthorized access, or complete control of the system. This is absolutely devastating for anyone relying on XWiki for their applications, as the entire server could be compromised with just a small profile change.
Imagine a hotel receptionist who can sneak into the management office and change the guest list at will — that’s the kind of access this vulnerability provides! Anyone can book a suite, but suddenly, anyone can change their room or even access secure areas without proper permissions. This vulnerability in XWiki allows users to inject Groovy scripts through the Scheduler Application, which are executed in the server's context upon viewing the modified profile. This means users can execute any server-side code without needing script rights.
An attacker could execute arbitrary Groovy code on the server, potentially leading to data breaches, unauthorized access, or complete control of the system. This is absolutely devastating for anyone relying on XWiki for their applications, as the entire server could be compromised with just a small profile change. Immediate action is required: upgrade to XWiki version 14.10.3 or 15.0 RC1 to patch this critical vulnerability. There are no known workarounds, so don’t delay! Check your installations and ensure all users are on the safe version. You've got this! By following these steps, you’ll secure your XWiki platform and keep your data safe! 🛡️