CVE-2021-41233 Information

Description

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.

CVSS Vector

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

Reference

https://github.com/nextcloud/text/pull/1884 https://github.com/nextcloud/security-advisories/security/advisories/GHSA-26c8-35cm-xq9m

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3