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 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.

CVSS 3.1

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

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-26)

CWE

CWE-79

Published

2026-04-06

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• pi-hole:web_interface

References

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

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