CVE-2025-53533: Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level advertisement and internet tracker…
CVE-2025-53533 · Severity: medium · CVSS 6.1 · Published 2025-10-27
Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level advertisement and internet tracker blocking application. Pi-hole Admin Interface versions 6.2.1 and earlier are vulnerable to reflected cross-site scripting (XSS) via a malformed URL path. The 404 error page includes the requested path in the class attribute of the body tag without proper sanitization or escaping. An attacker can craft a URL containing an onload attribute that will execute arbitrary JavaScript code in the browser when a victim visits the malicious link. If an attacker sends a crafted pi-hole link to a victim and the victim visits it, attacker-controlled JavaScript code is executed in the browser of the victim. This has been patched in version 6.3.
No. Junglewise Threat Intelligence has no report of CVE-2025-53533 being exploited in the wild.
How severe is CVE-2025-53533?
Medium severity, with a CVSS score of 6.1, published 27 October 2025.
Which products and versions are affected?
Pi-hole Web Interface. The advisory does not name versions.
Is there a fix for CVE-2025-53533?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-53533?
Check whether you run Pi-hole Web Interface. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.