CVE-2026-33765

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 v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/pi-hole/web/security/advisories/GHSA-828h-5x96-rqx7	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pi-hole:web_interface:*:*:*:*:*:*:*:*

History

07 Apr 2026, 18:15

Type	Values Removed	Values Added
References	~~() https://github.com/pi-hole/web/security/advisories/GHSA-828h-5x96-rqx7 -~~	() https://github.com/pi-hole/web/security/advisories/GHSA-828h-5x96-rqx7 - Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
CPE		cpe:2.3:a:pi-hole:web_interface::::::::
First Time		Pi-hole Pi-hole web Interface

27 Mar 2026, 20:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-27 20:16

Updated : 2026-04-07 18:15

NVD link : CVE-2026-33765

Mitre link : CVE-2026-33765

CVE.ORG link : CVE-2026-33765

JSON object : View

Products Affected

pi-hole

web_interface

CWE

CWE-78

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

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