siyuan-note SiYuan up to 3.7.3 Attribute-View queryBlocks sql injection

Summaryinfo

A vulnerability was found in siyuan-note SiYuan up to 3.7.3. It has been classified as critical. Affected by this vulnerability is the function queryBlocks of the component Attribute-View. This manipulation causes sql injection. This vulnerability is handled as CVE-2026-72807. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in siyuan-note SiYuan up to 3.7.3 and classified as critical. Affected by this vulnerability is the function queryBlocks of the component Attribute-View. The manipulation with an unknown input leads to a sql injection vulnerability. The CWE definition for the vulnerability is CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

SiYuan versions before v3.7.4 contain a second-order SQL injection vulnerability in attribute-view template columns that expose the queryBlocks function, which executes raw SQL using string substitution instead of parameterized queries. Attackers can distribute malicious SiYuan documents or packages with crafted template columns that execute arbitrary SQL on a victim's kernel when the package is imported and rendered, enabling read and write access across notebooks.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-72807 since 08/10/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1505 according to MITRE ATT&CK.

Upgrading to version 3.7.4 eliminates this vulnerability.

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Productinfo

Vendor

• siyuan-note

Name

• SiYuan

Version

• 3.7.0
• 3.7.1
• 3.7.2
• 3.7.3

Website

• Product: https://github.com/siyuan-note/siyuan/

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