CVE-2023-28357

A vulnerability has been identified in Rocket.Chat, where the ACL checks in the Slash Command /mute occur after checking whether a user is a member of a given channel, leaking private channel members to unauthorized users. This allows authenticated users to enumerate whether a username is a member of a channel that they do not have access to.

CVSS v3 4.3 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://hackerone.com/reports/1445810	Issue Tracking Third Party Advisory
https://hackerone.com/reports/1445810	Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:*

History

27 Jan 2025, 18:15

Type	Values Removed	Values Added
CWE		CWE-863

21 Nov 2024, 07:54

Type	Values Removed	Values Added
References	~~() https://hackerone.com/reports/1445810 - Issue Tracking, Third Party Advisory~~	() https://hackerone.com/reports/1445810 - Issue Tracking, Third Party Advisory

22 May 2023, 14:29

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 4.3
CWE		CWE-200
References	~~(MISC) https://hackerone.com/reports/1445810 -~~	(MISC) https://hackerone.com/reports/1445810 - Issue Tracking, Third Party Advisory
CPE		cpe:2.3:a:rocket.chat:rocket.chat::::::::

11 May 2023, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-05-11 22:15

Updated : 2025-01-27 18:15

NVD link : CVE-2023-28357

Mitre link : CVE-2023-28357

CVE.ORG link : CVE-2023-28357

JSON object : View

Products Affected

rocket.chat

rocket.chat

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

CWE-863

Incorrect Authorization

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