What is CVE-2026-33404?

CVE-2026-33404 is a low-severity vulnerability in Pi-hole Web, classified under Cross-site Scripting. CVSS score: 3.4/10. Published 2026-04-06.

How severe is CVE-2026-33404?

Low severity. CVSS v3 base score is 3.4 out of 10.

XSS in Pi-hole Web

CVE-2026-33404

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 withou…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.4 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.

Affected products

Pi-hole Web — versions >= 6.0, < 6.5
Pi-hole Web_interface

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2026-33404?: CVE-2026-33404 is a low-severity vulnerability in Pi-hole Web, classified under Cross-site Scripting. CVSS score: 3.4/10. Published 2026-04-06.
How severe is CVE-2026-33404?: Low severity. CVSS v3 base score is 3.4 out of 10.