CVE-2026-34448
CRITICAL
9,0
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: low
User Interaction: required
Scope: changed
Confidentiality: high
Integrity: high
Availability: high
Description
AI Translation Available
SiYuan is a personal knowledge management system. Prior to version 3.6.2, an attacker who can place a malicious URL in an Attribute View mAsse field can trigger stored XSS when a victim opens the Gallery or Kanban view with “Cover From -> Asset Field” enabled. The vulnerable code accepts arbitrary http(s) URLs without extensions as images, stores the attacker-controlled string in coverURL, and injects it directly into an <img src='...'> attribute without escaping. In the Electron desktop client, the injected JavaScript executes with nodeIntegration enabled and contextIsolation disabled, so the XSS reaches arbitrary OS command execution under the victim’s account. This issue has been patched in version 3.6.2.
79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
StableCommon Consequences
Security Scopes Affected:
Access Control
Confidentiality
Integrity
Availability
Potential Impacts:
Bypass Protection Mechanism
Read Application Data
Execute Unauthorized Code Or Commands
Applicable Platforms
Technologies:
AI/ML, Web Based, Web Server
94
Improper Control of Generation of Code ('Code Injection')
DraftCommon Consequences
Security Scopes Affected:
Access Control
Integrity
Confidentiality
Availability
Non-Repudiation
Potential Impacts:
Bypass Protection Mechanism
Gain Privileges Or Assume Identity
Execute Unauthorized Code Or Commands
Hide Activities
Applicable Platforms
Languages:
Interpreted
Technologies:
AI/ML
https://github.com/siyuan-note/siyuan/issues/17246
https://github.com/siyuan-note/siyuan/releases/tag/v3.6.2
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-rx4h-526q-4458