ByteOS Network

NVD Vulnerability Details :

CVE-2025-27715

Analyzed

Source-responsibledisclosure@mattermost.com

Published At-21 Mar, 2025 | 09:15

Updated At-27 Mar, 2025 | 15:01

Mattermost versions 9.11.x <= 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	3.3	LOW	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Primary	3.1	2.7	LOW	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N

Type: Secondary

Version: 3.1

Base score: 3.3

Base severity: LOW

Vector:

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

Type: Primary

Version: 3.1

Base score: 2.7

Base severity: LOW

Vector:

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

CPE Matches

Mattermost, Inc.

>>mattermost_server>>Versions from 9.11.0(inclusive) to 9.11.9(exclusive)

cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-863	Secondary	responsibledisclosure@mattermost.com
CWE-863	Primary	nvd@nist.gov

CWE ID: CWE-863

Type: Secondary

Source: responsibledisclosure@mattermost.com

CWE ID: CWE-863

Type: Primary

Source: nvd@nist.gov

References

Hyperlink	Source	Resource
https://mattermost.com/security-updates	responsibledisclosure@mattermost.com	Vendor Advisory

Hyperlink: https://mattermost.com/security-updates

Source: responsibledisclosure@mattermost.com

Resource:

Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History