CVE-2026-33405

low-risk

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.

Do I need to act?

0.03% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 3.1/10 Low

LOCAL / LOW complexity

Affected Products (1)

Web Interface

Affected Vendors

Pi-Hole

References (1)

Third Party Advisory https://github.com/pi-hole/web/security/advisories/GHSA-jx8x-mj2r-62vq

/ 100

low-risk

Severity 12/34 · Low

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal