4.4
MediumCVSS 3.1 · from VulnCheck
CVE-2026-118680
SiYuan 3.8.7 through 3.8.8 Path Traversal via GLOBALROOT Alias
siyuan · Path traversal · CWE-22Affectedsiyuan
FixNo fix listed yet.
PublishedOct 28, 18:59 · VulnCheck
ScoredOct 28 · 4.4 · VulnCheck
Exploit code publicNone known · checked 21:18 UTC
ExploitedNone known · CISA KEV checked 22:04 UTC
What we know
No known exploitation. CISA KEV, checked 22:04 UTC.
No public exploit code known. Exploit-DB, Metasploit, Nuclei, checked 21:18 UTC.
An attacker needs network access and an account. CVSS: network, high privileges.
It only works under certain conditions, which makes it harder to pull off. CVSS: high attack complexity.
A successful attack can read data. CVSS impact.
Description
SiYuan 3.8.7 through 3.8.8 fails to normalize Windows GLOBALROOT device-namespace aliases, bypassing the IsSensitivePath denylist. Attackers can invoke importStdMd with a GLOBALROOT-prefixed path to copy the API token and TLS private key into the publicly served assets directory.
From VulnCheck
Affected and fixed versions
ProductAffectedFixed insiyuan3.8.7 – 3.8.8–
Exploit code
Exploit-DBnone knownMetasploitnone knownNucleinone known