CVE-2026-33411: discourse

csirt@kutim:~/threat-intel/cve/CVE-2026-33411

CVSS 5.4 · Medium EPSS 0,28%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada discourse. Skor CVSS 3.1 5.4 (Medium) menurut NVD.

Deskripsi (NVD)

Discourse is an open-source discussion platform. Versions prior to 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 have a potential stored XSS in topic titles for the solved posts stream. Versions 2026.3.0-latest.1, 2026.2.1, and 2026.1.2 contain a patch. As a workaround, ensure that the Content Security Policy is enabled, and has not been modified in a way which would make it more vulnerable to XSS attacks.

Rincian

Terbit di NVD: 20 Maret 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS (30 hari): 0,28% peluang dieksploitasi; lebih tinggi dari 19,2% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
discourse	discourse	Versi 2026.1.0 hingga sebelum 2026.1.2
discourse	discourse	Versi 2026.2.0 hingga sebelum 2026.2.1
discourse	discourse	Versi 2026.3.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/discourse/discourse/security/advisories/GHSA-j3mm-ghh2-83x2 mitigasi · 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.