CVE-2026-30869
CRITICAL EPSS 59.3%
Published Mar 10, 20263mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Published Mar 10, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago
Description
SiYuan is a personal knowledge management system. Prior to 3.5.10, a path traversal vulnerability in the /export endpoint allows an attacker to read arbitrary files from the server filesystem. By exploiting double‑encoded traversal sequences, an attacker can access sensitive files such as conf/conf.json, which contains secrets including the API token, cookie signing key, and workspace access authentication code. Leaking these secrets may enable administrative access to the SiYuan kernel API, and in certain deployment scenarios could potentially be chained into remote code execution (RCE). This vulnerability is fixed in 3.5.10.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
59.3% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available
Weaknesses 1
CWE-22 Path Traversal Resource Mgmt
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| b3log | siyuan | * | <3.5.10 |
References 1
- github.com https://github.com/siyuan-note/siyuan/security/advisories/GHSA-2h2p-mvfx-868w
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.