CVE-2026-33765
CriticalSummary
Interfejs administracyjny Pi-hole, używany do zarządzania aplikacją blokującą reklamy i śledzenie w sieci, ma krytyczną podatność na wstrzykiwanie poleceń systemowych w pliku savesettings.php. Wersje przed 6.0 nie sanitizują ani nie walidują parametru $_POST['webtheme'], co pozwala atakującemu na dodanie dowolnych poleceń systemowych.
Risk Assessment
Podatność ta stwarza poważne ryzyko dla organizacji, ponieważ atakujący może uzyskać dostęp do systemu z podwyższonymi uprawnieniami, co może prowadzić do przejęcia kontroli nad serwerem. Wykorzystanie tej luki może skutkować poważnymi konsekwencjami dla bezpieczeństwa danych.
Recommendation
Zaleca się aktualizację do wersji 6.0 lub nowszej, aby usunąć tę podatność. Dodatkowo, warto przeprowadzić audyt bezpieczeństwa systemu w celu zidentyfikowania i naprawienia innych potencjalnych luk.
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Original NVD description (English source)
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. Versions prior to 6.0 have a critical OS Command Injection vulnerability in the savesettings.php file. The application takes the user-controlled $_POST['webtheme'] parameter and concatenates it directly into a system command executed via PHP's exec() function. Since the input is neither sanitized nor validated before being passed to the shell, an attacker can append arbitrary system commands to the intended pihole command. Furthermore, because the command is executed with sudo privileges, the injected commands will run with elevated (likely root) privileges. Version 6.0 patches the issue.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

