CVE-2026-33405: Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking…
CVE-2026-33405 · Severity: low · CVSS 3.1 · Published 2026-04-06
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.
No. Junglewise Threat Intelligence has no report of CVE-2026-33405 being exploited in the wild.
How severe is CVE-2026-33405?
Low severity, with a CVSS score of 3.1, published 6 April 2026.
Which products and versions are affected?
Pi-hole Web Interface. The advisory does not name versions.
Is there a fix for CVE-2026-33405?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-33405?
Check whether you run Pi-hole Web Interface. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.