cvedb.io
CVE-2023-28645
MEDIUM · CVSS 5.7
EPSS exploitation probability: 0%
Published 2023-03-31T23:15:07.397 · Last modified 2026-06-17T05:48:27.550

Summary

Nextcloud richdocuments is a Nextcloud app integrating the office suit Collabora Online. In affected versions the secure view feature of the rich documents app can be bypassed by using unprotected internal API endpoint of the rich documents app. It is recommended that the Nextcloud Office app (richdocuments) is upgraded to 8.0.0-beta.1, 7.0.2 or 6.3.2. Users unable to upgrade may mitigate the issue by taking steps to restrict the ability to download documents. This includes ensuring that the `WOPI configuration` is configured to only serve documents between Nextcloud and Collabora. It is highly recommended to define the list of Collabora server IPs as the allow list within the Office admin settings of Nextcloud.

Affected products

nextcloud — richdocuments

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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.