CVE-2023-39963 Information

Description

Nextcloud Server provides data storage for Nextcloud an open source cloud platform. Starting in version 20.0.0 and prior to versions 20.0.14.15 21.0.9.13 22.2.10.14 23.0.12.8 24.0.12.5 25.0.9 26.0.4 and 27.0.1 a missing password confirmation allowed an attacker after successfully stealing a session from a logged in user to create app passwords for the victim. Nextcloud server versions 25.0.9 26.0.4 and 27.0.1 and Nextcloud Enterprise Server versions 20.0.14.15 21.0.9.13 22.2.10.14 23.0.12.9 24.0.12.5 25.0.9 26.0.4 and 27.0.1 contain a patch for this issue. No known workarounds are available.

Reference

https://github.com/nextcloud/server/pull/39416 https://hackerone.com/reports/2067572 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-j4qm-5q5x-54m5