SecuriTricks - CVE-2025-27933

Description

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to fail to enforce channel conversion restrictions, which allows members with permission to convert public channels to private ones to also convert private ones to public

Product(s) Impacted

Vendor	Product	Versions
Mattermost	Mattermost	10.4.0-10.4.2, 10.3.0-10.3.3, 9.11.0-9.11.8

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-863

Incorrect Authorization

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. This allows attackers to bypass intended access restrictions.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	mattermost	mattermost	10.4.0-10.4.2	/	/	/	/	/	/	/
a	mattermost	mattermost	10.3.0-10.3.3	/	/	/	/	/	/	/
a	mattermost	mattermost	9.11.0-9.11.8	/	/	/	/	/	/	/

References

https://mattermost.com/security-updates

CVSS Score

5.4 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: LOW
Scope: UNCHANGED
Confidentiality Impact: LOW
Integrity Impact: LOW
Availability Impact: NONE

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

View Vector String

Timeline

Published: March 21, 2025, 9:15 a.m.
Last Modified: March 21, 2025, 9:15 a.m.

Status : Undergoing Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

responsibledisclosure@mattermost.com

CVE-2025-27933