There have been quite a few vulnerabilities fixed in Nextcloud 18 since 18.0.0 , please update the Fedora 32 package to the latest release 18.0.8.
In the meantime 18.0.9 has been released. Any update on this? Let me know if I can help.
FEDORA-2020-c9863904de has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2020-c9863904de
FEDORA-2020-c9863904de has been pushed to the Fedora 32 testing repository.
In short time you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --advisory=FEDORA-2020-c9863904de`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2020-c9863904de
See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Christopher Engelhard, thanks for addresing update.
FEDORA-2020-c9863904de has been pushed to the Fedora 32 stable repository.
If problem still persists, please make note of it in this bug report.