CVE-2026-1357: stato di sfruttamento e disponibilità della patch
CVE-2026-1357 · CVSS 9.8 CRITICAL · EPSS 33%
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 wpvivid_action=send_to_site parameter.
CVE-2026-1357 viene sfruttato?
Non è nel catalogo CISA KEV.
EPSS stima la probabilità di sfruttamento nei prossimi 30 giorni al 33%.
Codice di exploit pubblico: nessuno trovato nelle fonti monitorate.
Esistono regole di detection pubbliche.
Quali prodotti e versioni sono interessati?
Nessun elenco di pacchetti interessati registrato qui.