CVE-2026-23645: b3log siyuan

csirt@kutim:~/threat-intel/cve/CVE-2026-23645

CVSS 6.1 · Medium EPSS 0,28%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada b3log siyuan. Skor CVSS 3.1 6.1 (Medium) menurut NVD.

Deskripsi (NVD)

SiYuan is self-hosted, open source personal knowledge management software. Prior to 3.5.4-dev2, a Stored Cross-Site Scripting (XSS) vulnerability exists in SiYuan Note. The application does not sanitize uploaded SVG files. If a user uploads and views a malicious SVG file (e.g., imported from an untrusted source), arbitrary JavaScript code is executed in the context of their authenticated session. This vulnerability is fixed in 3.5.4-dev2.

Rincian

Terbit di NVD: 16 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-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
EPSS (30 hari): 0,28% peluang dieksploitasi; lebih tinggi dari 18,9% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
b3log	siyuan	Semua versi sebelum 3.5.4
b3log	siyuan	Versi 3.5.4 dev1

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-pcjq-j3mq-jv5j exploit · patch · advisory vendor
https://github.com/siyuan-note/siyuan/commit/11115da3d0de950593ee4ce375cf7f9018484388 patch
https://github.com/siyuan-note/siyuan/issues/16844 issue tracking · patch

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.