What is CVE-2026-33405?

CVE-2026-33405 is a low-severity vulnerability in Pi-hole Web, classified under Cross-site Scripting. CVSS score: 3.1/10. Published 2026-04-06.

How severe is CVE-2026-33405?

Low severity. CVSS v3 base score is 3.1 out of 10.

XSS in Pi-hole Web

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (10.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Pi-hole Web — versions >= 6.0, < 6.5

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2026-33405?: CVE-2026-33405 is a low-severity vulnerability in Pi-hole Web, classified under Cross-site Scripting. CVSS score: 3.1/10. Published 2026-04-06.
How severe is CVE-2026-33405?: Low severity. CVSS v3 base score is 3.1 out of 10.