Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, a reflected DOM-based XSS vulnerability in taillog.js allows an unauthenticated attacker to inject arbitrary HTML into the Pi-hole admin interface by crafting a malicious URL. The file query parameter is interpolated into an innerHTML assignment without escaping. Because the Content-Security-Policy is missing the form-action directive, injected <form> elements can exfiltrate credentials to an external origin. This vulnerability is fixed in 6.5.
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Mon, 06 Apr 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. From 6.0 to before 6.5, a reflected DOM-based XSS vulnerability in taillog.js allows an unauthenticated attacker to inject arbitrary HTML into the Pi-hole admin interface by crafting a malicious URL. The file query parameter is interpolated into an innerHTML assignment without escaping. Because the Content-Security-Policy is missing the form-action directive, injected <form> elements can exfiltrate credentials to an external origin. This vulnerability is fixed in 6.5. | |
| Title | Pi-hole has a Reflected XSS / HTML injection in taillog.js | |
| Weaknesses | CWE-79 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-04-06T15:05:23.490Z
Reserved: 2026-03-19T17:02:34.170Z
Link: CVE-2026-33403
Updated: 2026-04-06T15:05:14.834Z
Status : Received
Published: 2026-04-06T15:17:10.303
Modified: 2026-04-06T16:16:33.490
Link: CVE-2026-33403
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