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        "dateReserved": "2026-08-10T15:13:41.486Z",
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            "datePublic": "2026-07-25T00:00:00.000Z",
            "title": "FileBrowser before 2.63.19 Case Sensitivity Authentication Bypass",
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                    "value": "FileBrowser before 2.63.19 does not account for case-insensitive filesystems when checking home directory ownership during self-registration. When Signup and CreateUserDir are enabled and FileBrowser's root is on a case-insensitive filesystem (confirmed on Windows/NTFS), two self-registered usernames that differ only in letter case (e.g., CaseVictim and casevictim) are stored as distinct accounts but resolve to the same physical home directory, because the scope-ownership check compares the persisted scope as an exact case-sensitive string. A second registrant can therefore read, overwrite, and delete another account's files through authenticated HTTP endpoints, without needing an existing account or victim interaction."
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