cvedb.io
CVE-2026-23851
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-01-19T20:15:49.670 · Last modified 2026-06-17T10:22:12.350

Summary

SiYuan is a personal knowledge management system. Versions prior to 3.5.4 contain a logic vulnerability in the /api/file/globalCopyFiles endpoint. The function allows authenticated users to copy files from any location on the server's filesystem into the application's workspace without proper path validation. The vulnerability exists in the api/file.go source code. The function globalCopyFiles accepts a list of source paths (srcs) from the JSON request body. While the code checks if the source file exists using filelock.IsExist(src), it fails to validate whether the source path resides within the authorized workspace directory. Version 3.5.4 patches the issue.

Affected products

b3log — siyuan

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.