Is this vulnerability remotely exploitable over the network?

Yes. Any user who can authenticate to an affected SiYuan instance and send HTTP requests to `/api/search/fullTextSearchBlock` can attempt to exploit the issue, assuming `method=2` is accepted in that deployment.

Does exploitation require administrative privileges or a special role?

No. The flaw is that the endpoint lacks the protections applied to the dedicated SQL API, so even accounts with the Reader role can submit arbitrary SQL statements through this search path.

What is the safest general fix pattern for developers?

Route all SQL execution through a controlled interface that uses parameterized queries and enforces role-based authorization and read-only constraints. For search endpoints, expose only structured search parameters and internally translate them into safe queries rather than allowing user-supplied SQL.

Severity:

CRITICAL RISK

(9.8)

Authorization-Bypassed SQL Injection (CWE-89) in SiYuan Full-Text Search Endpoint

CVE-2026-32767

Published:

Mar 19, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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Privilege Escalation via Bypassed Access Control

May 6, 2026

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-89;CWE-863

Impact:

Arbitrary SQL Execution and Privilege Bypass

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

Vulnerability Type

Category:

SQL Injection

CWE:

CWE-89;CWE-863

Impact:

Arbitrary SQL Execution and Privilege Bypass

Severity:

CRITICAL RISK

(9.8)

CVSS Version:

3.1

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Authorization-Bypassed SQL Injection (CWE-89) in SiYuan Full-Text Search Endpoint

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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