cvedb.io
CVE-2026-62323
MEDIUM · CVSS 6.3
EPSS exploitation probability: 0%
Published 2026-07-31T04:17:24.160 · Last modified 2026-07-31T04:17:24.160

Summary

Cloudreve is a self-hosted file management and sharing system. Prior to 4.17.0, ViewerSessionValidation uses only the session-id prefix of a WOPI access token and does not enforce the requested viewer action, allowing a malicious or compromised WOPI viewer with a view session to forge the token suffix and invoke WOPI write routes for the underlying file. This issue is fixed in version 4.17.0.

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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.