CVE-2023-48304 Information

Description

Nextcloud Server provides data storage for Nextcloud an open source cloud platform. Starting in version 25.0.0 and prior to versions 25.0.11 26.0.6 and 27.1.0 of Nextcloud Server and starting in version 22.0.0 and prior to versions 22.2.10.16 23.0.12.11 24.0.12.7 25.0.11 26.0.6 and 27.1.0 of Nextcloud Enterprise Server an attacker could enable and disable the birthday calendar for any user on the same server. Nextcloud Server 25.0.11 26.0.6 and 27.1.0 and Nextcloud Enterprise Server 22.2.10.16 23.0.12.11 24.0.12.7 25.0.11 26.0.6 and 27.1.0 contain patches for this issue. No known workarounds are available.

Reference

https://github.com/nextcloud/security-advisories/security/advisories/GHSA-8jwv-c8c8-9fr3 https://github.com/nextcloud/server/pull/40292 https://hackerone.com/reports/2112973