CVE-2025-66488

Katalog CVE

CVSS 6.1 · Medium EPSS 0,20%

Kerentanan Improper Encoding or Escaping of Output pada discourse. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

Discourse is an open source discussion platform. A vulnerability present in versions prior to 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 affects anyone who uses S3 for uploads. While scripts may be executed, they will only be run in the context of the S3/CDN domain, with no site credentials. Versions 3.5.4, 2025.11.2, 2025.12.1, and 2026.1.0 fix the issue. As a workaround, disallow html or xml files for uploads in authorized_extensions. For existing html xml uploads, site owners can consider deleting them.

Rincian

Terbit di NVD

28 Januari 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-116: Improper Encoding or Escaping of Output

EPSS (30 hari)

0,20% peluang dieksploitasi; lebih tinggi dari 9,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/discourse/discourse/security/advisories/GHSA-68jp-3934-62rx advisory pihak ketiga