Pi-Hole: >> Web Interface >> 2.0.3 Security Vulnerabilities
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
8.2
EPSS Score
0.001
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.
CVSS Score
6.1
EPSS Score
0.0
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 prior to 6.3 are vulnerable to cross-site scripting (XSS) via the Address field in the Subscribed Lists group management section. An authenticated user can inject malicious JavaScript by adding a payload to the Address field when creating or editing a list entry. The vulnerability is triggered when another user navigates to the Tools section and performs a gravity database update. The Address field does not properly sanitize input, allowing special characters and script tags to bypass validation. This has been patched in version 6.3.
CVSS Score
5.4
EPSS Score
0.0
Published
2025-10-27
Pi-hole's Web interface (based on AdminLTE) provides a central location to manage one's Pi-hole and review the statistics generated by FTLDNS. Prior to version 5.8, cross-site scripting is possible when adding a client via the groups-clients management page. This issue was patched in version 5.8.
CVSS Score
7.3
EPSS Score
0.004
Published
2021-10-26
adminlte is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS Score
6.7
EPSS Score
0.002
Published
2021-09-17
adminlte is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVSS Score
6.7
EPSS Score
0.002
Published
2021-09-17
adminlte is vulnerable to Sensitive Cookie Without 'HttpOnly' Flag
CVSS Score
7.4
EPSS Score
0.002
Published
2021-09-15
Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. The Stored XSS exists in the Pi-hole Admin portal, which can be exploited by the malicious actor with the network access to DNS server. See the referenced GitHub security advisory for patch details.
CVSS Score
7.6
EPSS Score
0.003
Published
2021-04-15