Is CVE-2026-33404 actively exploited?

CVE-2026-33404 has no public evidence of in-the-wild exploitation as of 2026-04-14.

What is the CVSS score for CVE-2026-33404?

CVE-2026-33404 has a CVSS score of 3.4 (LOW severity). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.

How do I patch CVE-2026-33404?

Patch guidance is available from pi-hole security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-33404.

Which products are affected by CVE-2026-33404?

1 product: pi-hole web interface.

CVE-2026-33404 - remediation guidance & executive summary

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, client hostnames and IP addresses from the FTL database are rendered into the DOM without escaping in network.js (Network page) and charts.js/index.js (Dashboard chart tooltips). While upstream validation in dnsmasq and FTL blocks HTML characters via normal DHCP/DNS paths, the web UI performs no output escaping — an inconsistency with other fields in the same file that are properly escaped. This vulnerability is fixed in 6.5.

CVSS Metrics

Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N
Attack Vector: local
Complexity: low
Privileges: high
User Action: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: none
Weaknesses: CWE-79 · Cross-site Scripting (XSS)

Metadata

Primary Vendor: PI-HOLE
Published: 4/6/2026
Last Modified: 4/14/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2026-33404

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary