CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2023-28645
Medium (6.5) in nextcloud richdocuments. EPSS 0.7% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.7% chance of exploitation in the next 30 days; higher than 54% of CVEs (scores of 2026-10-31)
- CWE
- CWE-284
- Published
- Modified
- Record from
- the NVD, synced
Affected
- nextcloud:richdocuments
References
- https://docs.nextcloud.com/server/latest/admin_manual/office/configuration.html#wopi-settings
- https://github.com/nextcloud/richdocuments/pull/2604
- https://github.com/nextcloud/security-advisories/security/advisories/GHSA-95j6-p5cj-5hh5
- https://docs.nextcloud.com/server/latest/admin_manual/office/configuration.html#wopi-settings
- https://github.com/nextcloud/richdocuments/pull/2604