CVE-2026-100638

Published: Sep 26, 2026Modified: Sep 30, 2026Deferred

8.3

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:L/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

SiYuan versions before v3.8.4 contain a path traversal vulnerability in the setNotebookIcon endpoint that allows authenticated administrators to create arbitrary directory trees and write files outside the workspace boundary. Attackers can supply directory traversal sequences in the notebook parameter to escape the workspace data directory and write conf.json files to arbitrary locations accessible by the kernel process.

Related CWEs

CWE-73

External Control of File Name or Path

The product allows user input to control or influence paths or file names that are used in filesystem operations.

References (3)

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-6h8x-6mph-7438

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/siyuan-before-3.8.4-path-traversal-via-setnotebookicon

Source: disclosure@vulncheck.com

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-6h8x-6mph-7438

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.