CVE-2026-33405
3.1 · LOWOverview
CVE-2026-33405 is a low-severity vulnerability affecting pi-hole web_interface. It was published on April 6, 2026 and has a CVSS 3.1 base score of 3.1 (LOW).
This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, the formatInfo() function in queries.js renders data.upstream, data.client.ip, and data.ede.text into HTML without escaping when a user expands a query row in the Query Log, enabling stored HTML injection. JavaScript execution is blocked by the server's CSP (script-src 'self'). The same fields are properly escaped in the table view (rowCallback), confirming the omission was an oversight. This vulnerability is fixed in 6.5.
Remediation
Check the references section for vendor advisories and patches from pi-hole. Update web_interface to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| pi-hole | web_interface | 6.0 | Affected |
Frequently Asked Questions
What is CVE-2026-33405?
CVE-2026-33405 is a low-severity vulnerability affecting pi-hole web_interface. It was published on April 6, 2026 and has a CVSS 3.1 base score of 3.1 (LOW).
How severe is CVE-2026-33405?
This vulnerability has a CVSS 3.1 base score of 3.1, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2026-33405?
Check the references section for vendor advisories and patches from pi-hole. Update web_interface to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-33405?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-33405 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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Browser-based exploitation validates findings with real proof-of-concept.
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