CVE-2026-62204EPSS p0.6%

CVE-2026-62204CVE-2026-62204

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.

Scoring

CVSS 6.6 ()
VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L
EPSS0.09% probability of exploitation · percentile 0.6% · 2026-10-05T12:00:23Z
Last modified2026-08-26
Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.