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CVE-2026-69083

CriticalPublished

SiYuan before v3.7.3 SQL Injection via fullTextSearchAssetContent

Published: Aug 3, 2026
Updated: Aug 14, 2026
Assigning CNA: VulnCheck
Evidence observed: Aug 14, 2026

Primary CVSS

9.9/ 10Critical

nvd · CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/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 probability estimate

0.4%

Low · next 30 days

Percentile: 28.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

SiYuan versions before v3.7.3 contain SQL injection vulnerabilities in the fullTextSearchAssetContent endpoint reachable by unauthenticated users and publish RoleReader tokens. Attackers can execute arbitrary SQL on the read-write asset-content database via unescaped method parameters and REGEXP clauses to read, modify, or delete cross-notebook data.

Sources

CVE-2026-69083_exploitExploit
Python PoC for CVE-2026-69083, an unauthenticated SQL injection in SiYuan's asset-content search endpoint. Supports REGEXP breakout and raw SQL passthrough to dump indexed assets and attached SQLite data.

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