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DNN Vulnerability: Attackers Can Steal NTLM Credentials Through Unicode Normalization Bypass

A critical vulnerability in DNN (formerly DotNetNuke), one of the oldest open-source content management systems established in 2003. The vulnerability, designated CVE-2025-52488, allows attackers to steal NTLM credentials through a sophisticated Unicode normalization bypass that exploits file system operations. This authentication vulnerability affects the...