A bug in Nextcloud Server 14.0.4 could expose more data in reshared link shares than intended by the sharer.

A reflected Cross-Site Scripting vulnerability in Nextcloud Server 16.0.1 was discovered in the svg generation.

Improper authorization in Nextcloud server 17.0.0 causes leaking of previews and files when a file-drop share link is opened via the gallery app.

An authenticated server-side request forgery in Nextcloud server 16.0.1 allowed to detect local and remote services when adding a new subscription in the calendar application.

Improper preservation of permissions in Nextcloud Server 14.0.3 causes the event details to be leaked when sharing a non-public event.

An SQL Injection in the Nextcloud Lookup-Server < v0.3.0 (running on https://lookup.nextcloud.com) caused unauthenticated users to be able to execute arbitrary SQL commands.

Bypassing lock protection exists in Nextcloud Android app 3.6.0 when creating a multi-account and aborting the process.

SQL Injection in the Nextcloud Android app prior to version 3.0.0 allows to destroy a local cache when a harmful query is executed requiring to resetup the account.

Bypass lock protection in the Nextcloud Android app prior to version 3.3.0 allowed access to files when being prompted for the lock protection and switching to the Nextcloud file provider.

Bypass lock protection in the Nextcloud Android app prior to version 3.6.2 causes leaking of thumbnails when requesting the Android content provider although the lock protection was not solved.

Bypass lock protection in the Nextcloud Android app prior to version 3.6.1 allows accessing the files when repeatedly opening and closing the app in a very short time.

Improper sanitization of HTML in directory names in the Nextcloud Android app prior to version 3.7.0 allowed to style the directory name in the header bar when using basic HTML.

A missing check in the Nextcloud Server prior to version 15.0.1 causes leaking of calendar event names when adding or modifying confidential or private events.

Improper Input Validation in Nextcloud Server 15.0.7 allows group admins to create users with IDs of system folders.

Exposure of Private Information in Nextcloud Server 16.0.1 causes the server to send it's domain and user IDs to the Nextcloud Lookup Server without any further data when the Lookup server is disabled.

Not strictly enough sanitization in the Nextcloud Android app 3.6.0 allowed an attacker to get content information from protected tables when using custom queries.

Improper permissions preservation in Nextcloud Server 16.0.1 causes sharees to be able to reshare with write permissions when sharing the mount point of a share they received, as a public link.

Improper access control in Nextcloud Talk 6.0.3 leaks the existance and the name of private conversations when linked them to another shared item via the projects feature.

Improper neutralization of file names, conversation names and board names in Nextcloud Server 16.0.3, Nextcloud Talk 6.0.3 and Nextcloud Deck 0.6.5 causes an XSS when linking them with each others in a project.

Missing escaping of HTML in the Updater of Nextcloud 15.0.5 allowed a reflected XSS when starting the updater from a malicious location.