CVE-2026-116169

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 50/100
Published: 2026-10-25 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: Passive
AT: None
VC: None
VI: None
VA: None

Description

SiYuan from 2.10.0 before 3.8.7 contains a stored cross-site scripting vulnerability that allows users with edit permission to inject script by placing javascript: URLs in math block content rendered with KaTeX trust enabled. Attackers can store \href, \url, or \includegraphics payloads that mathRender assigns via innerHTML, executing script in the application origin when a reader clicks the rendered link.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
siyuan-note siyuan 2.10.0 < 3.8.7

Bug Bounty Relevance

50 / 100
✓ Network accessible
✓ Low complexity

CVSS Score

5.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

EPSS — Exploitation Probability

0.21%
Raw Score 0.002050
Percentile 10.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00205
2026-10-28
0.00205

Intelligence Sources

mitre ref →
nvd ref →