SiYuan through 3.8.4 renders notebook names as raw HTML in the Daily Note picker dialog without escaping, allowing stored cross-site scripting in the Electron renderer. Attackers can create notebooks with HTML payloads in names that execute JavaScript with Node.js access when the picker opens, enabling operating system command execution.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
Active
User action required
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
B3log Siyuan
cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
|
— |
<= 3.8.4
|
References 5
https://github.com/siyuan-note/siyuan
disclosure@vulncheck.com
https://github.com/siyuan-note/siyuan/blob/v3.8.4/app/src/util/mount.ts#L72
disclosure@vulncheck.com
https://github.com/siyuan-note/siyuan/blob/v3.8.4/kernel/model/file.go#L2446-L2…
disclosure@vulncheck.com
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-8c2m-33v9-vvqm
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/siyuan-through-3.8.4-stored-xss-via-notebo…
disclosure@vulncheck.com