CVE-2026-27178

Katalog CVE

CVSS 6.1 · Medium EPSS 0,41%

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 through method parameter injection into the shoutbox. The /objects/?method= endpoint allows unauthenticated execution of stored methods with attacker-controlled parameters. Default methods such as ThisComputer.VolumeLevelChanged pass the user-supplied VALUE parameter directly into the say() function, which stores the message raw in the shouts database table without escaping. The shoutbox widget renders stored messages without sanitization in both PHP rendering code and HTML templates. Because the dashboard widget auto-refreshes every 3 seconds, the injected script executes automatically when any administrator loads the dashboard, enabling session hijack through cookie exfiltration.

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)

0,41% peluang dieksploitasi; lebih tinggi dari 33,9% 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-method-parameters-to-shoutbox advisory pihak ketiga
• https://github.com/sergejey/majordomo/pull/1177 exploit · issue tracking