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CVE-2024-55660— SiYuan has an SSTI via /api/template/renderSprig

Quick assessment

Affected
siyuan-note siyuan
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SiYuan是SiYuan开源的一个隐私至上的个人知识管理系统。 SiYuan 3.1.16之前版本存在安全漏洞，该漏洞源于容易通过Sprig模板引擎受到服务器端模板注入(SSTI)攻击，允许攻击者访问环境变量。

AI Predicted 8.1 Difficulty: Easy EPSS 0.62% · P49

Possible ATT&CK Techniques 1 AI

T1561.002 · Disk Structure Wipe
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I. Basic Information for CVE-2024-55660

Vulnerability Information
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Vulnerability Title
SiYuan has an SSTI via /api/template/renderSprig
Source: CVE Program / CVE List V5
Vulnerability Description
SiYuan is a personal knowledge management system. Prior to version 3.1.16, SiYuan's `/api/template/renderSprig` endpoint is vulnerable to Server-Side Template Injection (SSTI) through the Sprig template engine. Although the engine has limitations, it allows attackers to access environment variables. Version 3.1.16 contains a patch for the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5
Vulnerability Title
SiYuan 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SiYuan是SiYuan开源的一个隐私至上的个人知识管理系统。 SiYuan 3.1.16之前版本存在安全漏洞，该漏洞源于容易通过Sprig模板引擎受到服务器端模板注入(SSTI)攻击，允许攻击者访问环境变量。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
siyuan-note siyuan < 3.1.16 -

II. Public POCs for CVE-2024-55660

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III. Intelligence Information for CVE-2024-55660

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Patches & Fixes for CVE-2024-55660 (1)

Vendor Advisories for CVE-2024-55660 (1)

Same Patch Batch · siyuan-note · 2024-12-11 · 4 CVEs total

CVE-2024-55659 SiYuan has an arbitrary file write in the host via /api/asset/upload
CVE-2024-55658 SiYuan has an arbitrary file read and path traversal via /api/export/exportResources
CVE-2024-55657 SiYuan has an arbitrary file read via /api/template/render

IV. Related Vulnerabilities

Same product: siyuan
Same vendor: siyuan-note
Same weakness: CWE-1336

V. Comments for CVE-2024-55660

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