// For flags

CVE-2021-41233

Missing authorization in Nextcloud text

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Nextcloud text es una edición de documentos colaborativos usando Markdown construido para el servidor nextcloud. Debido a un problema con la aplicación Nextcloud Text, que viene por defecto con el servidor Nextcloud, un atacante es capaz de acceder a los nombres de las carpetas de "File Drop". Para una explotación con éxito, el atacante debe conocer el enlace de compartición. Es recomendado a usuarios actualizar su Nextcloud Server a versión 20.0.14, 21.0.6 o 22.2.1. Los usuarios que no puedan actualizar deben deshabilitar la aplicación Nextcloud Text en la configuración de la aplicación

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-09-15 CVE Reserved
  • 2022-03-10 CVE Published
  • 2024-08-04 CVE Updated
  • 2024-10-14 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-862: Missing Authorization
  • CWE-863: Incorrect Authorization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nextcloud
Search vendor "Nextcloud"
 Nextcloud Server
Search vendor "Nextcloud" for product "Nextcloud Server"
 < 20.0.14
Search vendor "Nextcloud" for product "Nextcloud Server" and version " < 20.0.14"
-
Affected
Nextcloud
Search vendor "Nextcloud"
 Nextcloud Server
Search vendor "Nextcloud" for product "Nextcloud Server"
 >= 21.0.0 < 21.0.6
Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 21.0.0 < 21.0.6"
-
Affected
Nextcloud
Search vendor "Nextcloud"
 Nextcloud Server
Search vendor "Nextcloud" for product "Nextcloud Server"
 >= 22.2.0 < 22.2.1
Search vendor "Nextcloud" for product "Nextcloud Server" and version " >= 22.2.0 < 22.2.1"
-
Affected