CVE-2026-27177

Katalog CVE

CVSS 6.1 · Medium EPSS 0,36%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada mjdm majordomo. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

MajorDoMo (aka Major Domestic Module) contains a stored cross-site scripting (XSS) vulnerability via the /objects/?op=set endpoint, which is intentionally unauthenticated for IoT device integration. User-supplied property values are stored raw in the database without sanitization. When an administrator views the property editor in the admin panel, the stored values are rendered without escaping in both a paragraph tag (SOURCE field) and a textarea element (VALUE field). The XSS fires on page load without requiring any click from the admin. Additionally, the session cookie lacks the HttpOnly flag, enabling session hijack via document.cookie exfiltration. An attacker can enumerate properties via the unauthenticated /api.php/data/ endpoint and poison any property with malicious JavaScript.

Rincian

Terbit di NVD

18 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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://chocapikk.com/posts/2026/majordomo-revisited/ exploit · advisory pihak ketiga
• https://www.vulncheck.com/advisories/majordomo-stored-cross-site-scripting-via-property-set-endpoint advisory pihak ketiga
• https://github.com/sergejey/majordomo/pull/1177 exploit · issue tracking