IT-Sentinel

« BACK_TO_HOME

PUBLISHED

2026-03-20 23:16

MODIFIED

2026-03-20 23:16

CVSS_SCORE V3

7.5

EPSS (Prob. Exploit)

3.07%

Top 12.4%

🎯 NUCLEI TEMPLATE

DATA SOURCES:

NVD 🔗 2026-03-21 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-10-28 NUCLEI 🔗 2026-11-08

> DESCRIPTION

SiYuan is a personal knowledge management system. Prior to version 3.6.2, the Siyuan kernel exposes an unauthenticated file-serving endpoint under `/appearance/*filepath.` Due to improper path sanitization, attackers can perform directory traversal and read arbitrary files accessible to the server process. Authentication checks explicitly exclude this endpoint, allowing exploitation without valid credentials. Version 3.6.2 fixes this issue.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EXPLOITABILITY

3.9

IMPACT

3.6

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
            

Métrique	Valeur	Interprétation
AV (Vecteur d'Attaque) Attack Vector	Network (N)	Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque) Attack Complexity	Low (L)	Peu de conditions requises pour exploiter
PR (Privilèges Requis) Privileges Required	None (N)	Aucune authentification requise
UI (Interaction Utilisateur) User Interaction	None (N)	Aucune interaction utilisateur nécessaire
S (Périmètre) Scope	Unchanged (U)	Impact reste dans le périmètre du composant compromis
C (Impact Confidentialité) Confidentiality Impact	High (H)	Divulgation totale d'informations
I (Impact Intégrité) Integrity Impact	None (N)	Aucune modification de données possible
A (Impact Disponibilité) Availability Impact	None (N)	Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité

High

Divulgation totale d'informations

Intégrité

None

Aucune modification de données possible

Disponibilité

None

Aucune interruption de service

> WEAKNESSES

CWE-22 CWE-73

> CWE DETAILED DESCRIPTIONS

CWE-22: Improper Limitation of a Pathname to a Restricted Directory - The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. | CWE-73: External Control of File Name or Path - The product allows user input to control or influence paths or file names that are used in filesystem operations.

> GITHUB SECURITY ADVISORY

GHSA-hhgj-gg9h-rjp7 HIGH

Siyuan has an Unauthenticated Arbitrary File Read via Path Traversal

AFFECTED PACKAGES:

GO / github.com/siyuan-note/siyuan/kernel

<= 0.0.0-20260317012524-fe4523fff2c8

> NUCLEI TEMPLATES

Des templates Nuclei sont disponibles pour scanner cette vulnérabilité.

🎯

CVE-2026-33476.yaml

http/cves/2026/CVE-2026-33476.yaml

Usage: nuclei -t http/cves/2026/CVE-2026-33476.yaml -u target.com

> HISTORIQUE DES MODIFICATIONS

Première apparition

20/03/2026 23:16

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:58

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') - The product uses external input to construct a pathname that is intended to identify a file or directory that i...

Nouvelle valeur:

📊 ENRICHISSEMENT 01/04/2026 06:02

CWE