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PUBLISHED

2026-03-06 08:16

MODIFIED

2026-03-06 08:16

CVSS_SCORE V3

9.3

EPSS (Prob. Exploit)

0.71%

Top 47.0%

🎯 NUCLEI TEMPLATE

DATA SOURCES:

NVD 🔗 2026-03-06 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 NUCLEI 🔗 2026-11-08

> DESCRIPTION

SiYuan is a personal knowledge management system. Prior to version 3.5.9, an unauthenticated reflected XSS vulnerability exists in the dynamic icon API endpoint "GET /api/icon/getDynamicIcon" when type=8, attacker-controlled content is embedded into SVG output without escaping. Because the endpoint is unauthenticated and returns image/svg+xml, a crafted URL can inject executable SVG/HTML event handlers (for example onerror) and run JavaScript in the SiYuan web origin. This can be chained to perform authenticated API actions and exfiltrate sensitive data when a logged-in user opens the malicious link. This issue has been patched in version 3.5.9.

> 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:R/S:C/C:H/I:H/A:N

EXPLOITABILITY

2.8

IMPACT

5.8

> MÉTRIQUES CVSS DÉTAILLÉES

                CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/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	Required (R)	Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre) Scope	Changed (C)	Impact s'étend au-delà du composant compromis
C (Impact Confidentialité) Confidentiality Impact	High (H)	Divulgation totale d'informations
I (Impact Intégrité) Integrity Impact	High (H)	Modification totale des données possible
A (Impact Disponibilité) Availability Impact	None (N)	Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité

High

Divulgation totale d'informations

Intégrité

High

Modification totale des données possible

Disponibilité

None

Aucune interruption de service

> WEAKNESSES

CWE-79

> CWE DETAILED DESCRIPTIONS

CWE-79: Improper Neutralization of Input During Web Page Generation - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

> GITHUB SECURITY ADVISORY

GHSA-6865-qjcf-286f CRITICAL

SiYuan: Unauthenticated Reflected XSS via SVG Injection in /api/icon/getDynamicIcon Endpoint

AFFECTED PACKAGES:

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

< 0.0.0-20260304034809-d68bd5a79391

Fixed in: 0.0.0-20260304034809-d68bd5a79391

> NUCLEI TEMPLATES

Des templates Nuclei sont disponibles pour scanner cette vulnérabilité.

🎯

CVE-2026-29183.yaml

http/cves/2026/CVE-2026-29183.yaml

Usage: nuclei -t http/cves/2026/CVE-2026-29183.yaml -u target.com

> HISTORIQUE DES MODIFICATIONS

Première apparition

06/03/2026 08:16

Source: NVD

📊 ENRICHISSEMENT 01/11/2026 06:58

CWE

Champ modifié: Description CWE

Ancienne valeur:

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in...

Nouvelle valeur:

📊 ENRICHISSEMENT 01/04/2026 06:02

CWE