CVE-2026-62204

SiYuan versions before v3.7.4 fail to validate that packageName matches the downloaded package content in bazaar install endpoints. Attackers with same-origin access can overwrite existing trusted plugins by supplying mismatched packageName and repoURL parameters, achieving persistence across application restarts.

CVSS v3 6.6 MEDIUM

6.6^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.3

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-rpx2-p6hp-x5gj
https://www.vulncheck.com/advisories/siyuan-before-plugin-overwrite-via-bazaar-install

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-22 13:16

Updated : 2026-08-26 18:16

NVD link : CVE-2026-62204

Mitre link : CVE-2026-62204

CVE.ORG link : CVE-2026-62204

JSON object : View

Products Affected

No product.

CWE

CWE-345

Insufficient Verification of Data Authenticity

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