PT-2025-27827 · Pi-Hole · Pi-Hole

Denis Andzakovic · Published 2025-07-03 · Updated 2025-07-03 · CVE-2025-34087

Positive Technologies (AI Summary)

CVSS v4.0

9.0

Critical

Base vector

AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

Name of the Vulnerable Software and Affected Versions: Pi-hole versions up to 3.3

Description: An authenticated command injection issue exists, allowing an attacker to append OS commands to the domain string when adding a domain to the allowlist via the web interface. These commands are executed on the underlying operating system with the privileges of the Pi-hole service user. This behavior was present in the legacy AdminLTE interface.

Recommendations: For versions up to 3.3, update to a version later than 3.3 to patch the vulnerability. As a temporary workaround, consider restricting access to the allowlist feature in the web interface until a patch is applied. Avoid using the domain parameter in the allowlist feature via the web interface until the issue is resolved.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2026-00762

CVE-2025-34087

Affected Products

Pi-Hole

References · 11

• 🔥 https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/http/pihole_whitelist_exec.rb · Exploit
• 🔥 https://pulsesecurity.co.nz/advisories/pihole-v3.3-vulns · Exploit
• https://osv.dev/vulnerability/CVE-2025-34087 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-00762 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-34087 · Security Note
• https://github.com/pi-hole/web/releases/tag/v4.0 · Patch, Vendor Advisory
• https://vulncheck.com/advisories/pihole-adminlte-whitelist-rce · Note
• https://pi-hole.net · Note
• https://twitter.com/VulmonFeeds/status/1940919114555429227 · Twitter Post
• https://twitter.com/CveFindCom/status/1940865908848619817 · Twitter Post
• https://twitter.com/CVEnew/status/1940876701128708398 · Twitter Post