Server side request forgery (ssrf)

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...

Input validation

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

Input validation

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-2019-15613

CVE-2019-15613 affects Nextcloud Server 17.0.1, where a bug causes workflow rules to depend on the file extension when checking MIME types. This can impact all three security properties (confidentiality, integrity, availability) per CVSS metrics (NVD: AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H; base sco...

CVE-2019-15624

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

CVE-2019-15617

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

CVE-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-2020-8120

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

CVE-2019-15612

Nextcloud Server 15.0.2 is affected by CVE-2019-15612, where 2FA sessions are not properly expired after a user password reset. The issue is described as a bug in Nextcloud Server 15.0.2 that leaves pending 2FA logins active after password changes. Public references include the NVD entry and the ...

CVE-2020-8120

CVE-2020-8120 describes a reflected XSS in Nextcloud Server 16.0.1 related to SVG logo generation. The issue affects the SVG rendering path (logo) via user-controllable inputs and has a CVSS v3.1 base score of 6.1 (MEDIUM). Public references (NVD/CVE records and Nextcloud advisory) confirm the vu...

CVE-2020-8119

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...

CVE-2019-15617

CVE-2019-15617 affects Nextcloud Server (17.0.0) and arises from a missing check that allowed an attacker to set up a new second factor during login. Public documents reference the vulnerability and status across multiple sources (NVD/OSV/openvas) with remediation guidance generally recommending ...

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-2020-8118

CVE-2020-8118 describes an authenticated server-side request forgery (SSRF) in Nextcloud Server 16.0.1 . The vulnerability exists in the calendar application’s “add new subscription” workflow and permits an attacker to detect local and remote services. The connected documents consistently identif...

CVE-2019-15624

CVE-2019-15624: Nextcloud Server 15.0.7 is affected by improper input validation that allows group admins to create users with IDs of system folders. The issue is confirmed in CVE-2019-15624 and is addressed in security advisories accompanying Nextcloud updates to 15.0.14 (NC-SA-2020-015/openSUSE...

CVE-2020-8117

CVE-2020-8117 affects Nextcloud Server 14.0.3, involving improper preservation of permissions that leaks event details when sharing a non-public calendar event. Public references (NVD, CVE listing, SUSE, CNVD, OpenVAS/NC-SA-2020-013) confirm the issue name and description; CVSS metrics from NVD s...

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-2019-15617: Improper Authentication

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

CVE-2019-15623: Exposure of Private Personal Information to an Unauthorized Actor

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-2020-8122: Improper Access Control

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