CVE-2026-34718: zammad

csirt@kutim:~/threat-intel/cve/CVE-2026-34718

CVSS 6.1 · Medium EPSS 0,25%

Kerentanan Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) pada zammad. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.1 and 6.5.4, the HTML sanitizer for ticket articles was missing proper sanitization of data: ... URI schemes, resulting in storing such malicious content in the database of the Zammad instance. The Zammad GUI is rendering this content, due to applied CSP rules no harm was done by e.g., clicking such a link. This vulnerability is fixed in 7.0.1 and 6.5.4.

Rincian

Terbit di NVD: 8 April 2026
Terakhir diubah: 24 Juli 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-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
EPSS (30 hari): 0,25% peluang dieksploitasi; lebih tinggi dari 15,5% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
zammad	zammad	Semua versi sebelum 6.5.4
zammad	zammad	Versi 7.0.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/zammad/zammad/security/advisories/GHSA-c2cf-9fc7-jhf3 advisory vendor

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.