CVE-2023-1775: Unsanitized events sent over Websocket to regular users in a High Availability environment
4.3
CVSS
Description
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.
Classification
CVE ID: CVE-2023-1775
CVSS Base Severity: MEDIUM
CVSS Base Score: 4.3
Affected Products
Vendor: Mattermost
Product: Mattermost
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.07% (probability of being exploited)
EPSS Percentile: 30.86% (scored less or equal to compared to others)
EPSS Date: 2025-02-03 (when was this score calculated)