CVE-2026-62204: Insufficient Verification of Data Authenticity in siyuan-note siyuan
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.
CVE-2026-62204: Insufficient Verification of Data Authenticity in siyuan-note siyuan
Description
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 v4.0
Score 5.9medium
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-07-13T16:39:22.250Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a899b9bacd9273b49087873
Added to database: 08/22/2026, 12:52:43 UTC
Last updated: 08/22/2026, 12:52:43 UTC
Views: 1
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