CVE-2024-55660: b3log siyuan
Vulnerability summary
CVE-2024-55660 is a critical (CVSS 9.8) vulnerability in b3log siyuan. EPSS estimates a 0.62% chance of exploitation in the next 30 days, higher than 48.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 11-12-2024PublishedVulnerability first disclosed.
- 12-12-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · GoEcosystem advisory · calculated6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
- NVDNIST6.9MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
0.62%
Chance of exploitation in the next 30 days
Percentile
49%
Versus all other CVEs
30-day change
0.00 pp
From 0.62% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-1336Improper Neutralization of Special Elements Used in a Template EngineThe product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine.
- CWE-94Improper Control of Generation of Code ('Code Injection')The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
Affected systems
B3log1 product
- siyuan3.1.15
Github.com/siyuan-note/siyuan1 product
- kernel≤ 0.0.0-20241210012039-5129ad926a21 | All versions (No fix recorded)
Siyuan-note1 product
- siyuan< 3.1.16
3 vendors · 3 products
References
5 links- github.com/siyuan-note/siyuan/security/advisories/GHSA-4pjc-pwgq-q9jpX Refsource CONFIRMWEBAdvisoryVendor Advisory
- github.com/siyuan-note/siyuan/commit/e70ed57f6e4852e2bd702671aeb8eb3a47a36d71X Refsource MISCWEBPatch
