CVE-2023-1775
Unsanitized events sent over Websocket to regular users in a High Availability environment
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
When running in a High Availability configuration, Mattermost fails to sanitize some of the user_updated and post_deleted events broadcast to all users, leading to disclosure of sensitive information to some of the users with currently connected Websocket clients.
*Credits:
Kyriakos Ziakoulis, Harrison Healey
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2023-03-31 CVE Reserved
- 2023-03-31 CVE Published
- 2024-08-02 CVE Updated
- 2024-10-21 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
- CWE-668: Exposure of Resource to Wrong Sphere
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://mattermost.com/security-updates | 2023-11-07 |
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" | < 7.1.6 Search vendor "Mattermost" for product "Mattermost Server" and version " < 7.1.6" | - |
Affected
| ||||||
| Mattermost Search vendor "Mattermost" | Mattermost Server Search vendor "Mattermost" for product "Mattermost Server" | 7.7.1 Search vendor "Mattermost" for product "Mattermost Server" and version "7.7.1" | - |
Affected
| ||||||