CVE-2026-26952

Katalog CVE

CVSS 5.4 · Medium EPSS 0,36%

Kerentanan Improper Input Validation pada pi-hole web interface. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

Pi-hole Admin Interface is a web interface for managing Pi-hole, a network-level ad and internet tracker blocking application. Versions 6.4 and below are vulnerable to stored HTML injection through the local DNS records configuration page, which allows an authenticated administrator to inject code that is stored in the Pi-hole configuration and rendered every time the DNS records table is viewed. The populateDataTable() function contains a data variable with the full DNS record value exactly as entered by the user and returned by the API. This value is inserted directly into the data-tag HTML attribute without any escaping or sanitization of special characters. When an attacker supplies a value containing double quotes ("), they can prematurely “close” the data-tag attribute and inject additional HTML attributes into the element. Since Pi-hole implements a Content Security Policy (CSP) that blocks inline JavaScript, the impact is limited. This issue has been fixed in version 6.4.1.

Rincian

Terbit di NVD

19 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

5.4 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-116: Improper Encoding or Escaping of Output

EPSS (30 hari)

0,36% peluang dieksploitasi; lebih tinggi dari 27,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/pi-hole/web/commit/d328f143718022d82dc94c8751121ca41be3b996 patch
• https://github.com/pi-hole/web/security/advisories/GHSA-6xp4-jw73-f4qp advisory pihak ketiga
• https://github.com/pi-hole/web/releases/tag/v6.4.1 release notes