// For flags

CVE-2023-4478

Parameter tampering in the registration resulting in blocked accounts to be created

Severity Score

8.2
*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 restrict which parameters' values it takes from the request during signup allowing an attacker to register users as inactive, thus blocking them from later accessing Mattermost without the system admin activating their accounts.

Mattermost no restringe los valores de los parámetros que toma de la solicitud durante el registro, lo que permite a un atacante registrar a los usuarios como inactivos, bloqueándoles así el acceso posterior a Mattermost sin que el administrador del sistema active sus cuentas.

*Credits: 0AQD (0aqd)
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2023-08-22 CVE Reserved
  • 2023-08-25 CVE Published
  • 2024-08-31 EPSS Updated
  • 2024-09-30 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://mattermost.com/security-updates 2023-08-31
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"
< 7.8.9
Search vendor "Mattermost" for product "Mattermost Server" and version " < 7.8.9"
-
Affected
Mattermost
Search vendor "Mattermost"
Mattermost Server
Search vendor "Mattermost" for product "Mattermost Server"
>= 7.9.0 < 7.10.5
Search vendor "Mattermost" for product "Mattermost Server" and version " >= 7.9.0 < 7.10.5"
-
Affected
Mattermost
Search vendor "Mattermost"
Mattermost Server
Search vendor "Mattermost" for product "Mattermost Server"
8.0.0
Search vendor "Mattermost" for product "Mattermost Server" and version "8.0.0"
-
Affected