Vulnerability Description
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 before 6.3 is vulnerable to Carriage Return Line Feed (CRLF) injection. When a request is made to a file ending with the .lp extension, the application performs a redirect without properly sanitizing the input. An attacker can inject carriage return and line feed characters (%0d%0a) to manipulate both the headers and the content of the HTTP response. This enables the injection of arbitrary HTTP response headers, potentially leading to session fixation, cache poisoning, and the weakening or bypassing of browser-based security mechanisms such as Content Security Policy or X-XSS-Protection. This vulnerability is fixed in 6.3.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pi-Hole | Web Interface | < 6.3 |
Related Weaknesses (CWE)
References
- https://github.com/pi-hole/web/security/advisories/GHSA-5v79-p56f-x7c4ExploitVendor Advisory
FAQ
What is CVE-2025-59151?
CVE-2025-59151 is a vulnerability with a CVSS score of 8.2 (HIGH). 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 before 6.3 is vulnerable to Carriage R...
How severe is CVE-2025-59151?
CVE-2025-59151 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-59151?
Check the references section above for vendor advisories and patch information. Affected products include: Pi-Hole Web Interface.