Skip to main content
← All vulnerabilities
CVE-2023-28645

Secure view can be bypassed by using internal API endpoint in Nextcloud richdocuments

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 7.0.2, 6.3.2
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: partial

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: partial

  3. Record last updated

Affected versions

  • nextcloud security-advisories

    From 7.0.0 · fixed in 7.0.2; fixed in 6.3.2

References 3

GitHub · nextcloud/security-advisories

GitHub · nextcloud/richdocuments

docs.nextcloud.com