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Vulnerability DatabaseCVE-2020-14457
CVE-2020-14457:
vulnerability analysis and mitigation
Overview
An issue was discovered in Mattermost Server before 5.20.0 where non-members could receive broadcasted team details via the update_team WebSocket event (MMSA-2020-0012). The vulnerability was disclosed on June 19, 2020 and assigned CVE-2020-14457. The issue affects all versions of Mattermost Server prior to version 5.20.0 (NVD, Vendor Advisory).
Technical details
The vulnerability has a CVSS v3.1 Base Score of 5.3 (Medium) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. This indicates the vulnerability is network exploitable, requires low attack complexity, needs no privileges or user interaction, and can result in low confidentiality impact without affecting integrity or availability (NVD).
Impact
The vulnerability allows unauthorized users (non-members) to access team details that should be restricted, potentially leading to information disclosure through the WebSocket event system (NVD).
Exploitability
The vulnerability can be exploited remotely through network access, requiring low attack complexity and no special privileges or user interaction (NVD).
Mitigation and workarounds
The vulnerability was fixed in Mattermost Server version 5.20.0. Users should upgrade to this version or later to mitigate the issue (Vendor Advisory).
Additional resources
Source: This report was generated using AI
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