CVE-2026-6227
HighSummary
Wtyczka BackWPup dla WordPressa jest podatna na Local File Inclusion poprzez parametr `block_name` w punkcie końcowym REST `/wp-json/backwpup/v1/getblock` we wszystkich wersjach do 5.6.6 włącznie. Problem wynika z nieodpowiedniej sanitizacji sekwencji przejścia ścieżek, co pozwala uwierzytelnionym atakującym z dostępem na poziomie Administratora na włączenie dowolnych plików PHP na serwerze.
Risk Assessment
Atakujący mogą wykorzystać tę podatność do odczytu wrażliwych plików, takich jak `wp-config.php`, lub do zdalnego wykonania kodu w określonych konfiguracjach. Istnieje ryzyko, że użytkownicy o niższych uprawnieniach mogą wykorzystać tę lukę, jeśli administratorzy przyznają im odpowiednie uprawnienia do zarządzania kopiami zapasowymi.
Recommendation
Zaleca się aktualizację wtyczki BackWPup do najnowszej wersji, aby usunąć tę podatność. Dodatkowo, administratorzy powinni ograniczyć uprawnienia użytkowników do zarządzania kopiami zapasowymi, aby zminimalizować ryzyko wykorzystania tej luki.
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Original NVD description (English source)
The BackWPup plugin for WordPress is vulnerable to Local File Inclusion via the `block_name` parameter of the `/wp-json/backwpup/v1/getblock` REST endpoint in all versions up to, and including, 5.6.6 due to a non-recursive `str_replace()` sanitization of path traversal sequences. This makes it possible for authenticated attackers, with Administrator-level access and above, to include arbitrary PHP files on the server via crafted traversal sequences (e.g., `....//`), which can be leveraged to read sensitive files such as `wp-config.php` or achieve remote code execution in certain configurations. Administrators have the ability to grant individual users permission to handle backups, which may then allow lower-level users to exploit this vulnerability.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

