/Vulnerability Library

Pi-hole Reflected XSS in 404-Error Page

CVE-2025-53533
Verified

Description

Pi-hole Admin Interface <= 6.2.1 contains a reflected XSS vulnerability on the 404 error page. The URL path is reflected unsanitized into the `class` attribute of the `body` tag, allowing attribute injection via a crafted URL to execute arbitrary JavaScript in victim browsers.

Severity

Medium

CVSS Score

6.1

Exploit Probability

1%

Affected Product

web_interface

Published Date

April 2, 2026

Template Author

dhiyaneshdk

CVE-2025-53533.yaml
6.1Score

CVSS Metrics

CVSS Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVE ID:
cve-2025-53533
CWE ID:
cwe-79

References

https://github.com/pi-hole/web/security/advisories/GHSA-w8f8-92rx-4f6whttps://nvd.nist.gov/vuln/detail/CVE-2025-53533

Remediation Steps

Update to Pi-hole web interface version 6.3 or later.