CVE-2026-33765: high-severity vulnerability in pi-hole web
Pi-hole Web Interface has a Command Injection Vulnerability
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.9epss 1.3%
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
pi-hole · webRelated CVEs — pi-hole web
In the same product, most dangerous first.
CVE-2025-53533MEDIUMPi-hole Admin Interface vulnerable to cross-site scripting via malformed URL path on 404 error pageEPSS 0.6%CVE-2025-59151HIGHPi-hole Admin Interface vulnerable to HTTP response header injection via CRLF injectionEPSS 0.4%CVE-2026-26953MEDIUMPi-hole Web Interface has Stored HTML Injection via X-Forwarded-For Header in Active Sessions TableEPSS 0.3%CVE-2026-26952MEDIUMPi-hole Web Interface has Stored HTML Injection via Local DNS Records (CNAME/Hosts) in data-tag AttributeEPSS 0.3%CVE-2026-33406MEDIUMPi-hole has a Stored HTML attribute injectionEPSS 0.3%CVE-2025-32785LOWPi-hole Admin Interface vulnerable to persistent XSS on Subscribed lists group management (Adress Field)EPSS 0.3%