CVE-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.

CVSS Vector

References

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