Reflected XSS Vulnerability in Pi-hole Admin Interface by Pi-hole
CVE-2025-53533

5.1MEDIUM

Key Information:

Vendor

Pi-hole

Status
Web
Vendor
CVE Published:
27 October 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-53533?

The Pi-hole Admin Interface is susceptible to reflected cross-site scripting vulnerabilities in versions 6.2.1 and earlier. Attackers can exploit this flaw by sending users a specially crafted URL that triggers arbitrary JavaScript execution in the victim's browser upon visiting the malicious link. The issue arises due to improper handling of the requested path in the class attribute of the body tag in the 404 error page, allowing for the execution of attacker's code. Users are strongly advised to upgrade to version 6.3 to mitigate this risk.

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Deploy the Patch

Affected Version(s)

web < 6.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

Pi-hole-XSS-CVE-2025-53533
Created by moezbouzayani9

References

https://github.com/pi-hole/web/security/advisories/GHSA-w...
x_refsource_CONFIRM

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability Reserved

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