CVE-2026-93591 SiYuan - SQL Injection

SiYuan < 3.8.3 contains an sql injection caused by unescaped tag values concatenated in graph.go query2Stmt function, letting publish-mode readers or anonymous visitors execute arbitrary SQL queries, exploit requires crafted inline HTML span tags.

CVSS base score 7.6 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.32% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
SQL Injection
Impact
Information Disclosure
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Published
18 September 2026
Updated
15 October 2026
Weakness
CWE-89

Vendor fix

Update to version 3.8.3 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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