Mattermost fails to properly validate the origin of a websocket connection allowing a MITM attacker on Mattermost to access the websocket APIs.
Published 2023-07-17 16:15:10
Updated 2023-07-27 19:46:40
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2023-3581

0.10%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 43 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-3581

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
8.1
HIGH CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
2.2
5.9
NIST
6.2
MEDIUM CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
0.3
5.9
Mattermost, Inc.

CWE ids for CVE-2023-3581

  • The product does not properly verify that the source of data or communication is valid.
    Assigned by:
    • nvd@nist.gov (Primary)
    • responsibledisclosure@mattermost.com (Secondary)

References for CVE-2023-3581

Products affected by CVE-2023-3581

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