Critical · published July 14, 2025
🚨 A sneaky flaw in XWiki Rendering lets restricted macros run wild! 🦸♂️ With just a crafted nested macro, an attacker could slip past barriers that should've kept them out. This vulnerability is like a hotel that forgets to check IDs at the front desk, allowing unauthorized guests to crash the party. Just as guests could access restricted areas without proper clearance, attackers can execute forbidden scripts through nested macros. An attacker could exploit this oversight to execute malicious scripts within the XWiki environment, potentially leading to unauthorized data access or complete takeover of the wiki. It's absolutely devastating to think that a few crafty macros could undermine the entire system's security!
This vulnerability is like a hotel that forgets to check IDs at the front desk, allowing unauthorized guests to crash the party. Just as guests could access restricted areas without proper clearance, attackers can execute forbidden scripts through nested macros. This vulnerability arises from the default macro content parser not enforcing the restricted attribute during the execution of nested macros, allowing users to run script macros in contexts where they should be forbidden.
An attacker could exploit this oversight to execute malicious scripts within the XWiki environment, potentially leading to unauthorized data access or complete takeover of the wiki. It's absolutely devastating to think that a few crafty macros could undermine the entire system's security! Upgrade to XWiki versions 13.10.11, 14.4.7, or 14.10 immediately! In the meantime, disable comments for untrusted users to mitigate the risk of exploitation while you get your systems patched. You can do this in your admin settings! You've got this! Stay vigilant and secure your XWiki like the hero you are! 🛡️