Mattermost up to 9.11.12/10.5.3/10.6.2/10.7.0 Team Privacy Setting /api/v4/teams/ 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.
3.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Mattermost up to 9.11.12/10.5.3/10.6.2/10.7.0. This vulnerability affects unknown code of the file /api/v4/teams/ of the component Team Privacy Setting Handler. Performing a manipulation results in authorization. This vulnerability was named CVE-2025-3913. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mattermost up to 9.11.12/10.5.3/10.6.2/10.7.0. It has been classified as problematic. This affects some unknown processing of the file /api/v4/teams/ of the component Team Privacy Setting Handler. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. The summary by CVE is:

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to properly validate permissions when changing team privacy settings, allowing team administrators without the 'invite user' permission to access and modify team invite IDs via the /api/v4/teams/:teamId/privacy endpoint.

The weakness was presented by omarAhmed1. The advisory is shared at mattermost.com. This vulnerability is uniquely identified as CVE-2025-3913 since 04/24/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. Additional levels of successful authentication are necessary for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 237904 (Mattermost Server 9.11.x < 9.11.13 / 10.5.x < 10.5.4 / 10.6.x < 10.6.3 / 10.7.1 Multiple Vulnerabilities (MMSA-2025-00458, MMSA-2025-00463, MMSA-2025-00467)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.11.13, 10.5.4, 10.6.3, 10.7.1 or 10.8.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (237904). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.9
VulDB Meta Temp Score: 3.9

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.8
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Mattermost): 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 237904
Nessus Name: Mattermost Server 9.11.x < 9.11.13 / 10.5.x < 10.5.4 / 10.6.x < 10.6.3 / 10.7.1 Multiple Vulnerabilities (MMSA-2025-00458, MMSA-2025-00463, MMSA-2025-00467)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Mattermost 9.11.13/10.5.4/10.6.3/10.7.1/10.8.0

Timelineinfo

04/24/2025 🔍
05/29/2025 +35 days 🔍
05/29/2025 +0 days 🔍
10/03/2025 +127 days 🔍

Sourcesinfo

Advisory: mattermost.com
Researcher: omarAhmed1
Status: Confirmed

CVE: CVE-2025-3913 (🔍)
GCVE (CVE): GCVE-0-2025-3913
GCVE (VulDB): GCVE-100-310533

Entryinfo

Created: 05/29/2025 17:56
Updated: 10/03/2025 20:00
Changes: 05/29/2025 17:56 (65), 06/08/2025 08:56 (2), 10/03/2025 20:00 (11)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!