// For flags

CVE-2025-3446

Members Without Guest Invite Permissions Can Add Guests to Teams

Severity Score

4.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Mattermost versions 10.6.x <= 10.6.1, 10.5.x <= 10.5.2, 10.4.x <= 10.4.4, 9.11.x <= 9.11.11 fail to check the correct permissions which allows authenticated users who only have permission to invite non-guest users to a team to add guest users to that team via the API to add a single user to a team.

These are all security issues fixed in the govulncheck-vulndb-0.0.20250523T151856-1.1 package on the GA media of openSUSE Tumbleweed.

*Credits: 0x7oda7123
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2025-04-08 CVE Reserved
  • 2025-05-15 CVE Published
  • 2025-05-15 CVE Updated
  • 2025-06-16 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-863: Incorrect Authorization
CAPEC
References (1)
URL Tag Source
https://mattermost.com/security-updates
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mattermost
Search vendor "Mattermost"
 Mattermost
Search vendor "Mattermost" for product "Mattermost"
 >= 10.6.0 <= 10.6.1
Search vendor "Mattermost" for product "Mattermost" and version " >= 10.6.0 <= 10.6.1"
en
Affected
Mattermost
Search vendor "Mattermost"
 Mattermost
Search vendor "Mattermost" for product "Mattermost"
 >= 10.5.0 <= 10.5.2
Search vendor "Mattermost" for product "Mattermost" and version " >= 10.5.0 <= 10.5.2"
en
Affected
Mattermost
Search vendor "Mattermost"
 Mattermost
Search vendor "Mattermost" for product "Mattermost"
 >= 10.4.0 <= 10.4.4
Search vendor "Mattermost" for product "Mattermost" and version " >= 10.4.0 <= 10.4.4"
en
Affected
Mattermost
Search vendor "Mattermost"
 Mattermost
Search vendor "Mattermost" for product "Mattermost"
 >= 9.11.0 <= 9.11.11
Search vendor "Mattermost" for product "Mattermost" and version " >= 9.11.0 <= 9.11.11"
en
Affected