
Critical .NET MAUI Vulnerabilities Expose Cross-Platform Mobile Security Risks
Security researchers at Bishop Fox have demonstrated critical vulnerabilities in Microsoft's .NET Multi-platform App UI (MAUI) framework, revealing how cross-platform development creates unified security risks across iOS and Android applications. The analysis shows that MAUI's shared C# codebase architecture allows attackers to reverse-engineer a single assembly and apply findings to both platform versions simultaneously. Using their published mauidlltool, researchers can extract readable assemblies from both Android APKs and iOS IPAs, exposing hardcoded secrets, weak encryption implementations, and authorization flaws that affect millions of users across both app stores. This research highlights the growing security challenges of cross-platform mobile development frameworks as organizations prioritize development efficiency over security isolation. With MAUI applications increasingly deployed in enterprise environments handling sensitive data, the single-point-of-failure risk becomes particularly concerning for compliance and data protection.
Kill Chain










