Critical · published March 8, 2023
🔥 A sneaky stored XSS vulnerability in Jenkins update-center2 allows attackers to exploit plugin downloads without breaking a sweat! Think of this like a restaurant where a chef can sneak in a hidden ingredient without anyone checking the recipe — it could lead to some nasty surprises for customers if not caught! Attackers could use this vulnerability to inject malicious scripts that execute in the context of any user downloading the plugin. This means they could steal sensitive information, hijack sessions, or deface webpages. The consequences could be absolutely devastating for your Jenkins environment!
Think of this like a restaurant where a chef can sneak in a hidden ingredient without anyone checking the recipe — it could lead to some nasty surprises for customers if not caught! This stored XSS vulnerability arises because Jenkins update-center2 versions 3.13 and 3.14 fail to sanitize the required core version displayed on plugin download index pages.
Attackers could use this vulnerability to inject malicious scripts that execute in the context of any user downloading the plugin. This means they could steal sensitive information, hijack sessions, or deface webpages. The consequences could be absolutely devastating for your Jenkins environment! Immediately upgrade Jenkins update-center2 to version 3.15 or later to patch this vulnerability. Additionally, review any custom plugins hosted to ensure no malicious scripts are included. You've got this! With the right updates, you can lock down your Jenkins environment and protect your users! 🛡️