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B3log

42 known vulnerabilities

16
CRITICAL
13
HIGH
13
MEDIUM

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siyuan 42
42 CVEs
5.4
CVE-2026-40922

SiYuan is an open-source personal knowledge management system. In versions 3.6.1 through 3.6.3, a prior fix for XSS in b

9.0
CVE-2026-40322

SiYuan is an open-source personal knowledge management system. In versions 3.6.3 and below, Mermaid diagrams are rendere

8.5
CVE-2026-40318

SiYuan is an open-source personal knowledge management system. In versions 3.6.3 and prior, the /api/av/removeUnusedAttr

8.1
CVE-2026-40259

SiYuan is an open-source personal knowledge management system. In versions 3.6.3 and below, the /api/av/removeUnusedAttr

6.5
CVE-2026-40107

SiYuan is a personal knowledge management system. Prior to 3.6.4, SiYuan configures Mermaid.js with securityLevel: "loos

9.0
CVE-2026-39846

SiYuan is a personal knowledge management system. Prior to 3.6.4, a malicious note synced to another user can trigger re

6.1
CVE-2026-34605

SiYuan is a personal knowledge management system. From version 3.6.0 to before version 3.6.2, the SanitizeSVG function i

8.6
CVE-2026-34585

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a vulnerability allows crafted block attribute

7.5
CVE-2026-34453

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the publish service exposes bookmarked blocks

9.6
CVE-2026-34449

SiYuan is a personal knowledge management system. Prior to version 3.6.2, a malicious website can achieve Remote Code Ex

9.0
CVE-2026-34448

SiYuan is a personal knowledge management system. Prior to version 3.6.2, an attacker who can place a malicious URL in a

9.8
CVE-2026-33670

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the /api/file/readDir interface was used to tr

9.8
CVE-2026-33669

SiYuan is a personal knowledge management system. Prior to version 3.6.2, document IDs were retrieved via the /api/file/

7.5
CVE-2026-33476

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the Siyuan kernel exposes an unauthenticated f

7.5
CVE-2026-33203

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the SiYuan kernel WebSocket server accepts una

6.8
CVE-2026-33194

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the `IsSensitivePath()` function in `kernel/ut

9.0
CVE-2026-33067

SiYuan is a personal knowledge management system. Versions 3.6.0 and below render package metadata fields (displayName,

9.0
CVE-2026-33066

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the backend renderREADME function uses lu

9.3
CVE-2026-32940

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, SanitizeSVG has an incomplete blocklist —

9.9
CVE-2026-32938

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the /api/lute/html2BlockDOM on the deskto

9.8
CVE-2026-32767

SiYuan is a personal knowledge management system. Versions 3.6.0 and below contain an authorization bypass vulnerability

7.5
CVE-2026-32815

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the WebSocket endpoint (/ws) allows unaut

9.0
CVE-2026-32751

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the mobile file tree (MobileFiles.ts) ren

6.8
CVE-2026-32750

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, POST /api/import/importStdMd passes the l

7.6
CVE-2026-32749

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, POST /api/import/importSY and POST /api/i

6.8
CVE-2026-32747

SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the globalCopyFiles API eads source file

6.5
CVE-2026-32704

SiYuan is a personal knowledge management system. Prior to 3.6.1, POST /api/template/renderSprig lacks model.CheckAdminR

8.3
CVE-2026-32110

SiYuan is a personal knowledge management system. Prior to 3.6.0, the /api/network/forwardProxy endpoint allows authenti

6.1
CVE-2026-31809

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer (SanitizeSVG) checks href attr

6.1
CVE-2026-31807

SiYuan is a personal knowledge management system. Prior to 3.5.10, SiYuan's SVG sanitizer (SanitizeSVG) blocks dangerous

9.3
CVE-2026-30869

SiYuan is a personal knowledge management system. Prior to 3.5.10, a path traversal vulnerability in the /export endpoin

7.1
CVE-2026-30926

SiYuan is a personal knowledge management system. Prior to 3.5.10, a privilege escalation vulnerability exists in the pu

9.3
CVE-2026-29183

SiYuan is a personal knowledge management system. Prior to version 3.5.9, an unauthenticated reflected XSS vulnerability

8.8
CVE-2026-29073

SiYuan is a personal knowledge management system. Prior to version 3.6.0, the /api/query/sql lets a user run sql directl

7.5
CVE-2026-25992

SiYuan is a personal knowledge management system. Prior to 3.5.5, the /api/file/getFile endpoint uses case-sensitive str

4.6
CVE-2026-25647

Lute is a structured Markdown engine supporting Go and JavaScript. Lute 1.7.6 and earlier (as used in SiYuan before) has

9.1
CVE-2026-25539

SiYuan is a personal knowledge management system. Prior to version 3.5.5, the /api/file/copyFile endpoint does not valid

9.6
CVE-2026-23852

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 have a stored Cross-Site Scripting (XSS) vulne

6.5
CVE-2026-23851

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 contain a logic vulnerability in the /api/file

7.5
CVE-2026-23850

SiYuan is a personal knowledge management system. In versions prior to 3.5.4, the markdown feature allows unrestricted s

6.1
CVE-2026-23847

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 are vulnerable to reflected cross-site scripti

6.1
CVE-2026-23645

SiYuan is self-hosted, open source personal knowledge management software. Prior to 3.5.4-dev2, a Stored Cross-Site Scri

Frequently Asked Questions

How many CVEs affect B3log?

B3log has 42 CVE records in our database, including 16 critical and 13 high severity vulnerabilities.

What are the most severe B3log vulnerabilities?

B3log has 16 critical severity (CVSS 9.0+) and 13 high severity (CVSS 7.0-8.9) vulnerabilities. Review the list above sorted by publication date to find the most recent high-severity issues.

How can I scan for B3log vulnerabilities?

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