CVE-2026-33406 (GCVE-0-2026-33406)
Vulnerability from cvelistv5
Published
2026-04-06 14:50
Modified
2026-04-07 14:08
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Summary
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, configuration values from the /api/config endpoint are placed directly into HTML value="" attributes without escaping in settings-advanced.js, enabling HTML attribute injection. A double quote in any config value breaks out of the attribute context. JavaScript execution is blocked by the server's CSP (script-src 'self'), but injected attributes can alter element styling for UI redressing. The primary attack vector is importing a malicious teleporter backup, which bypasses per-field server-side validation. This vulnerability is fixed in 6.5.
Impacted products
Vendor Product Version
pi-hole web Version: >= 6.0, < 6.5
Create a notification for this product.
Show details on NVD website


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