CVE-2026-32767

CRITICAL EPSS 41.4%
Published Mar 20, 20263mo ago · Modified Jun 17, 20262w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Mar 20, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

Description

SiYuan is a personal knowledge management system. Versions 3.6.0 and below contain an authorization bypass vulnerability in the /api/search/fullTextSearchBlock endpoint. When the method parameter is set to 2, the endpoint passes user-supplied input directly as a raw SQL statement to the underlying SQLite database without any authorization or read-only checks. This allows any authenticated user — including those with the Reader role — to execute arbitrary SQL statements (SELECT, DELETE, UPDATE, DROP TABLE, etc.) against the application's database. This is inconsistent with the application's own security model: the dedicated SQL endpoint (/api/query/sql) correctly requires both CheckAdminRole and CheckReadonly middleware, but the search endpoint bypasses these controls entirely. This issue has been fixed in version 3.6.1.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
41.4% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 2

CWE-863 Incorrect Authorization Authorization
CWE-89 SQL Injection Injection

Affected Products 1

VendorProductVersionRange
b3logsiyuan* <3.6.1

References 4

  • github.com https://github.com/siyuan-note/siyuan/commit/d5e2d0bce0dffef5f61bd8066954bc2d41181fc5
    Patch
  • github.com https://github.com/siyuan-note/siyuan/issues/17209
    Issue Tracking
  • github.com https://github.com/siyuan-note/siyuan/releases/tag/v3.6.1
    Release Notes
  • github.com https://github.com/siyuan-note/siyuan/security/advisories/GHSA-j7wh-x834-p3r7
    ExploitMitigationVendor Advisory

Remediation

  • github.com https://github.com/siyuan-note/siyuan/commit/d5e2d0bce0dffef5f61bd8066954bc2d41181fc5
    Patch