Unauthenticated Local File Inclusion in Måne Web Application

CVE-2026-66670 represents a critical vulnerability in Måne versions 1.7 and earlier, allowing unauthenticated attackers to include and execute arbitrary local files through path traversal manipulation. This Local File Inclusion (LFI) vulnerability, categorized under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program), enables threat actors to bypass authentication entirely and access sensitive files, configuration data, or execute malicious code directly on affected systems. Organizations running Måne in production environments face immediate risk of data exfiltration, credential theft, and potential remote code execution, making this a high-severity issue despite not yet appearing in active exploit campaigns tracked by CISA.

While Måne-specific MITRE ATT&CK mappings are not currently defined, Casky's Claude AI-powered analysis would detect attack patterns consistent with T1190 (Exploit Public-Facing Application) and T1083 (File and Directory Discovery) through behavioral analysis of request patterns. Practitioners using Casky would identify suspicious indicators such as unusual path traversal sequences (../ patterns), repeated attempts to access /etc/passwd or configuration files, and authentication bypass attempts in server logs. The platform's extended reasoning capability would correlate unauthenticated file access attempts with directory enumeration patterns, flagging the progression from reconnaissance to exploitation even when traditional signatures fail, enabling defenders to detect and respond to exploitation attempts before successful compromise.