CVE-2021-41233 MEDIUM

CVE-2021-41233: Missing authorization in Nextcloud text

Vendor Nextcloud
Product security-advisories
Weakness CWE-862 · Missing authorization
Published March 10, 2022
Last update April 23, 2025

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

What the vulnerability does

01Description

Nextcloud text is a collaborative document editing using Markdown built for the nextcloud server. Due to an issue with the Nextcloud Text application, which is by default shipped with Nextcloud Server, an attacker is able to access the folder names of "File Drop". For successful exploitation an attacker requires knowledge of the sharing link. It is recommended that users upgrade their Nextcloud Server to 20.0.14, 21.0.6 or 22.2.1. Users unable to upgrade should disable the Nextcloud Text application in the application settings.

Key dates

02Disclosure timeline

March 10, 2022 CVE published
April 23, 2025 Record updated