Critical · published December 15, 2023
CVSS calls it critical at 10.0. It sits in the 99.6th percentile for exploit probability.
🔥 You can trigger a remote code execution attack just by editing a wiki page! The XWiki Platform has a vulnerability that’d let any user who can edit a page inject malicious scripts straight into the administration interface. ⚡ Think of it like a restaurant where anyone can suggest new menu items. If the chef doesn't check the suggestions thoroughly, someone might slip in a recipe that could ruin dinner for everyone! Here, the search administration interface is that unchecked kitchen, vulnerable to malicious input. With this vulnerability, an attacker can inject Groovy macros into the system, leading to potentially devastating consequences. They could access sensitive data, alter content, or even bring the entire XWiki instance to a halt. The threat to confidentiality, integrity, and availability is nothing short of catastrophic!
Think of it like a restaurant where anyone can suggest new menu items. If the chef doesn't check the suggestions thoroughly, someone might slip in a recipe that could ruin dinner for everyone! Here, the search administration interface is that unchecked kitchen, vulnerable to malicious input. The issue stems from the XWiki search administration interface failing to properly escape the id and label of user interface extensions, allowing the injection of harmful XWiki syntax. This can be exploited by any user who has the ability to edit a wiki page.
With this vulnerability, an attacker can inject Groovy macros into the system, leading to potentially devastating consequences. They could access sensitive data, alter content, or even bring the entire XWiki instance to a halt. The threat to confidentiality, integrity, and availability is nothing short of catastrophic! To protect your XWiki instance, upgrade to versions 14.10.15, 15.5.2, or 15.7-rc-1 immediately. If for any reason you can’t upgrade right now, apply the patch manually to the page `XWiki.SearchAdmin` to mitigate the risk. Act fast! You’ve got this! Follow these steps and you’ll lock down your XWiki like a pro! 🛡️