rootpwn

high · CVSS v3 7.6 · CVSS v4 8.3

CVE-2026-100638

SiYuan versions before v3.8.4 contain a path traversal vulnerability in the setNotebookIcon endpoint that allows authent…

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.

Scores

Severity
high
CVSS v2
6.8
CVSS v3
7.6
CVSS v4
8.3
EPSS
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