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…

PriorityP427medium6.6CVSS 3.1

AVLACHPRLUIRSCCLIHAL

EPSS

0.09%

0.6th percentile

no history available

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.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
siyuan-note	siyuan	< 3.7.4	3.7.4

CVSS provenance

nvdv3.16.6MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L

nvdv4.05.9MEDIUMCVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:P/VC:L/VI:H/VA:L/SC:L/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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