The Hytale Modding Wiki is a free service for Hytale mods to host their documentation & wikis. An Insecure Direct Object Reference (IDOR) vulnerability in versions of the wiki prior to 1.0.0 exposes mod authors' personal information - including full names and email addresses - to any authenticated user who visits a mod page. Any user who creates an account can access sensitive author details by simply navigating to a mod's page via its slug. Version 1.0.0 fixes the issue.