Critical · published November 23, 2022
🔥 Watch out! An eval injection vulnerability in XWiki's AttachmentSelector.xml can let attackers run arbitrary code if they slip in a sneaky payload! Imagine a restaurant that doesn’t check the ingredients before cooking. A chef could add anything to a dish, including something dangerous, just because no one asked to see the recipe! That's how this flaw works – by allowing harmful commands without any checks. An attacker could exploit this flaw to execute malicious code, potentially compromising the entire server running your wiki. Imagine someone slipping a toxic ingredient into your dish – the damage could be catastrophic and absolutely devastating for your data integrity!
Imagine a restaurant that doesn’t check the ingredients before cooking. A chef could add anything to a dish, including something dangerous, just because no one asked to see the recipe! That's how this flaw works – by allowing harmful commands without any checks. This vulnerability allows improper neutralization of directives in dynamically evaluated code, specifically in the AttachmentSelector.xml file, enabling attackers to run commands through crafted payloads in properties like 'height' or 'alt'.
An attacker could exploit this flaw to execute malicious code, potentially compromising the entire server running your wiki. Imagine someone slipping a toxic ingredient into your dish – the damage could be catastrophic and absolutely devastating for your data integrity! Update your XWiki to version 14.5-rc-1, 14.4.2, or 13.10.7 (or later) to fix this vulnerability. You can directly modify the XWiki.AttachmentSelector settings to ensure you are protected against this eval injection risk. You've got this! Follow the steps to reinforce your wiki's security and keep your data safe! 🛡️