Mattermost up to 9.11.12/10.5.3/10.7.0 Channel Members API Endpoint authorization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Mattermost up to 9.11.12/10.5.3/10.7.0. This issue affects some unknown processing of the component Channel Members API Endpoint. This manipulation causes authorization. The identification of this vulnerability is CVE-2025-1792. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Mattermost up to 9.11.12/10.5.3/10.7.0. Affected by this vulnerability is an unknown code of the component Channel Members API Endpoint. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-863. 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. As an impact it is known to affect confidentiality. The summary by CVE is:

Mattermost versions 10.7.x <= 10.7.0, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly enforce access controls for guest users accessing channel member information, allowing authenticated guest users to view metadata about members of public channels via the channel members API endpoint.

The weakness was shared by Bob10x1. It is possible to read the advisory at mattermost.com. This vulnerability is known as CVE-2025-1792 since 02/28/2025. The exploitation appears to be difficult. The attack can be launched remotely. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 237903 (Mattermost Server 9.11.x < 9.11.13 / 10.5.x < 10.5.4 / 10.7.x < 10.7.1 Multiple Vulnerabilities (MMSA-2025-00457, MMSA-2025-00462)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.11.13, 10.5.4, 10.7.1 or 10.8.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (237903). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Groupware Software

Name

• Mattermost

Version

• 9.11.0
• 9.11.1
• 9.11.2
• 9.11.3
• 9.11.4
• 9.11.5
• 9.11.6
• 9.11.7
• 9.11.8
• 9.11.9
• 9.11.10
• 9.11.11
• 9.11.12
• 10.0
• 10.1
• 10.2
• 10.3
• 10.4
• 10.5
• 10.5.0
• 10.5.1
• 10.5.2
• 10.5.3
• 10.6
• 10.7.0

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 3.1
CNA Vector (Mattermost): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-863 / CWE-285 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 237903
Nessus Name: Mattermost Server 9.11.x < 9.11.13 / 10.5.x < 10.5.4 / 10.7.x < 10.7.1 Multiple Vulnerabilities (MMSA-2025-00457, MMSA-2025-00462)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost 9.11.13/10.5.4/10.7.1/10.8.0

Timelineinfo

02/28/2025 🔍
05/30/2025 +90 days 🔍
05/30/2025 +0 days 🔍
06/08/2025 +9 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: Bob10x1
Status: Confirmed

CVE: CVE-2025-1792 (🔍)
GCVE (CVE): GCVE-0-2025-1792
GCVE (VulDB): GCVE-100-310699

Entryinfo

Created: 05/30/2025 18:00
Updated: 06/08/2025 08:56
Changes: 05/30/2025 18:00 (64), 06/08/2025 08:56 (2)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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