CVE-2026-33405

MediumCVSS 4.8/10Last modified Oct 26, 2026

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.

Metrics

CVSS 3.1 4.8/10CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

Weakness enumeration

CWE-79

Affected software

Vendor	Product	Versions
pi-hole	web	>= 6.0, < 6.5

References

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

Timeline

Published: Apr 6, 2026
Last modified: Oct 26, 2026
NVD status: Analyzed

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