CVE-2026-33765
criticalpriority · track · 39EPSS 0.013 · 70 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-33765cnnvd
- https://github.com/pi-hole/web/security/advisories/GHSA-828h-5x96-rqx7cnnvd
- https://pi-hole.net/Patchcnnvd
- https://github.com/pi-hole/web/security/advisories/GHSA-828h-5x96-rqx7enisa_euvd
- https://github.com/pi-hole/web/security/advisories/GHSA-828h-5x96-rqx7Vendor Advisorynvd
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