CVE-2026-1357
CriticalSummary
Wtyczka WPvivid Backup & Migration dla WordPressa jest podatna na nieautoryzowane przesyłanie dowolnych plików w wersjach do 0.9.123 włącznie. Problem wynika z niewłaściwego zarządzania błędami w procesie deszyfrowania RSA oraz braku sanitizacji ścieżek przy zapisywaniu przesyłanych plików.
Risk Assessment
Atakujący może przesyłać złośliwe pliki PHP do publicznie dostępnych katalogów, co prowadzi do zdalnego wykonania kodu. To stwarza poważne zagrożenie dla bezpieczeństwa systemu i danych organizacji.
Recommendation
Zaleca się aktualizację wtyczki do najnowszej wersji, aby usunąć tę podatność. Dodatkowo, warto wdrożyć mechanizmy ograniczające możliwość przesyłania plików oraz monitorować dostęp do katalogów publicznych.
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Original NVD description (English source)
The Migration, Backup, Staging – WPvivid Backup & Migration plugin for WordPress is vulnerable to Unauthenticated Arbitrary File Upload in versions up to and including 0.9.123. This is due to improper error handling in the RSA decryption process combined with a lack of path sanitization when writing uploaded files. When the plugin fails to decrypt a session key using openssl_private_decrypt(), it does not terminate execution and instead passes the boolean false value to the phpseclib library's AES cipher initialization. The library treats this false value as a string of null bytes, allowing an attacker to encrypt a malicious payload using a predictable null-byte key. Additionally, the plugin accepts filenames from the decrypted payload without sanitization, enabling directory traversal to escape the protected backup directory. This makes it possible for unauthenticated attackers to upload arbitrary PHP files to publicly accessible directories and achieve Remote Code Execution via the w
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

