CVE-2026-33405: 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…

PriorityP422medium4.8CVSS 3.1

AVNACLPRHUIRSCCLILAN

EPSS

0.17%

6.7th percentile

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.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
pi-hole	web	—	—
pi-hole	web_interface	6.0 – 6.4.1	—

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