// For flags

CVE-2023-5333

Denial of Service via multiple identical User IDs in /api/v4/users/ids

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Mattermost fails to deduplicate input IDs allowing a simple user to cause the application to consume excessive resources and possibly crash by sending a specially crafted request to /api/v4/users/ids with multiple identical IDs.

Mattermost no logra desdoblar los ID de entrada, lo que permite que un simple usuario haga que la aplicación consuma recursos excesivos y posiblemente falle al enviar una solicitud especialmente manipulada a /api/v4/users/ids con múltiples ID idénticos.

Mattermost fails to deduplicate input IDs allowing a simple user to cause the application to consume excessive resources and possibly crash by sending a specially crafted request to /api/v4/users/ids with multiple identical IDs.

*Credits: vultza (vultza)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-10-02 CVE Reserved
  • 2023-10-09 CVE Published
  • 2024-09-05 CVE Updated
  • 2025-04-15 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-400: Uncontrolled Resource Consumption
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://mattermost.com/security-updates 2023-10-12
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 Server
Search vendor "Mattermost" for product "Mattermost Server"
 < 7.8.11
Search vendor "Mattermost" for product "Mattermost Server" and version " < 7.8.11"
-
Affected
Mattermost
Search vendor "Mattermost"
 Mattermost Server
Search vendor "Mattermost" for product "Mattermost Server"
 >= 8.0.0 < 8.0.3
Search vendor "Mattermost" for product "Mattermost Server" and version " >= 8.0.0 < 8.0.3"
-
Affected
Mattermost
Search vendor "Mattermost"
 Mattermost Server
Search vendor "Mattermost" for product "Mattermost Server"
 >= 8.1.0 < 8.1.2
Search vendor "Mattermost" for product "Mattermost Server" and version " >= 8.1.0 < 8.1.2"
-
Affected