Open WebUI is an open-source, scalable, feature rich, and user-friendly self hosted WebUI. The Open WebUI v0.3.8 version has a security vulnerability that stems from an insecure Direct Object Reference (IDOR) vulnerability that allows attackers to edit other users' memory without proper authorization. This rule supports to defend the A6: Vulnerable and Outdated Components of OWASP Top 10 - 2021. Other reference:None