Cross site scripting

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

Design/Logic Flaw

A bug in Nextcloud Server 15.0.2 causes pending 2FA logins to not be correctly expired when the password of the user is reset...

Code injection

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...

CVE-2019-15616

Dangling remote share attempts in Nextcloud 16 allow a DNS pollution when running long...

CVE-2020-8120

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

CVE-2019-15617

A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login...

CVE-2020-8122

A missing check in Nextcloud Server 14.0.3 could give recipient the possibility to extend the expiration date of a share they received...

CVE-2019-15624

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

CVE-2019-15620

CVE-2019-15620 describes an improper access control vulnerability in Nextcloud Talk 6.0.3 where the existence and names of private conversations can be leaked when those conversations are linked to another shared item via the Projects feature. Affected component is Nextcloud Talk (Spreed) 6.0.3. ...

CVE-2019-15621

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...

CVE-2019-15611

CVE-2019-15611 affects the iOS Nextcloud App (version 2.23.0) and is due to a violation of Secure Design Principles that causes the app to disclose login credentials and access tokens to other Nextcloud services during user search (e.g., federated users) or push-notification registration. The iss...

CVE-2019-15619

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...

CVE-2019-15613

A bug in Nextcloud Server 17.0.1 causes the workflow rules to depend their behaviour on the file extension when checking file mimetypes...

CVE-2020-8121

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

CVE-2019-15616

Dangling remote share attempts in Nextcloud 16 allow a DNS pollution when running long...

CVE-2019-15617

A missing check in Nextcloud Server 17.0.0 allowed an attacker to set up a new second factor when trying to login...

CVE-2020-8122

A missing check in Nextcloud Server 14.0.3 could give recipient the possibility to extend the expiration date of a share they received...

CVE-2019-15621

Nextcloud Server 16.0.1 is affected by CVE-2019-15621: an improper permissions preservation enables sharees to reshare with write permissions when sharing the mount point of a received share via a public link. Root cause is a permissions preservation flaw in the sharing flow; exploitation details...

CVE-2020-8119

CVE-2020-8119 affects Nextcloud Server 17.0.0 and is described as improper authorization that leaks previews and files when a file-drop share link is opened via the gallery app. The connected updates show this vulnerability being addressed in Nextcloud-related security updates (e.g., openSUSE/SUS...

CVE-2019-15621

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...