CVE-2026-34528
HighSummary
File Browser to interfejs zarządzania plikami, który umożliwia przesyłanie, usuwanie, podgląd, zmienianie nazw i edytowanie plików w określonym katalogu. Przed wersją 2.62.2, handler rejestracji w File Browser przyznawał domyślne uprawnienia użytkownika, nie usuwając uprawnienia do wykonywania oraz listy poleceń z domowego szablonu użytkownika.
Risk Assessment
Gdy administrator włączył rejestrację, wykonanie po stronie serwera oraz ustawił Execute=true w domowym szablonie użytkownika, każdy nieautoryzowany użytkownik, który zarejestruje się samodzielnie, dziedziczy zdolności do wykonywania poleceń w powłoce, co stwarza poważne zagrożenie dla bezpieczeństwa serwera.
Recommendation
Zaleca się aktualizację do wersji 2.62.2 lub nowszej, aby usunąć tę podatność oraz przegląd ustawień uprawnień użytkowników w celu zminimalizowania ryzyka.
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Original NVD description (English source)
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to version 2.62.2, the signupHandler in File Browser applies default user permissions via d.settings.Defaults.Apply(user), then strips only Admin. The Execute permission and Commands list from the default user template are not stripped. When an administrator has enabled signup, server-side execution, and set Execute=true in the default user template, any unauthenticated user who self-registers inherits shell execution capabilities and can run arbitrary commands on the server. This issue has been patched in version 2.62.2.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS