CVE-2026-87811

Katalog CVE

CVSS 7.3 · High EPSS 0,37%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'). Skor CVSS 3.1 7.3 (High) menurut vulncheck.com.

Deskripsi (NVD)

SiYuan before v3.8.2 inserts persisted notebook template paths into HTML input value attributes without proper attribute encoding. Attackers can craft malicious template paths that break out of the attribute context and execute JavaScript when a victim opens notebook configuration, enabling same-origin API requests and application state manipulation.

Rincian

Terbit di NVD

9 September 2026

Terakhir diubah

9 September 2026

Status NVD

Deferred

CVSS 3.1

7.3 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

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

EPSS (30 hari)

0,37% peluang dieksploitasi; lebih tinggi dari 28,6% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v6wf-r2gr-rrgf
• https://www.vulncheck.com/advisories/siyuan-before-3.8.2-stored-xss-via-notebook-template-paths