CVE-2021-32652

Missing permission check on email metadata retrieval

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Nextcloud Mail is a mail app for the Nextcloud platform. A missing permission check in Nextcloud Mail before 1.4.3 and 1.8.2 allows another authenticated users to access mail metadata of other users. Versions 1.4.3 and 1.8.2 contain patches for this vulnerability; no workarounds other than the patches are known to exist.

Nextcloud Mail es una aplicación de correo para la plataforma Nextcloud. Una falta de comprobación de permisos en Nextcloud Mail versiones anteriores a 1.4.3 y 1.8.2, permite a otro usuario autentificado acceder a los metadatos de correo de otros usuarios. Las versiones 1.4.3 y 1.8.2 contienen parches para esta vulnerabilidad; no se conoce la existencia de otras soluciones aparte de los parches

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-05-12 CVE Reserved
2021-06-01 CVE Published
2023-03-08 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-284: Improper Access Control
CWE-862: Missing Authorization

CAPEC

References (2)

URL	Tag	Source
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-mxx2-6rg9-v2vc	Third Party Advisory

URL	Date	SRC
https://hackerone.com/reports/1094063	2024-08-03

URL	Date	SRC

URL	Date	SRC

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 Mail Search vendor "Nextcloud" for product "Nextcloud Mail"				< 1.4.3 Search vendor "Nextcloud" for product "Nextcloud Mail" and version " < 1.4.3"		-		Affected
Nextcloud Search vendor "Nextcloud"		Nextcloud Mail Search vendor "Nextcloud" for product "Nextcloud Mail"				>= 1.5.5 < 1.8.2 Search vendor "Nextcloud" for product "Nextcloud Mail" and version " >= 1.5.5 < 1.8.2"		-		Affected