What is CVE-2023-5339?

CVE-2023-5339 is a medium-severity vulnerability in Mattermost, classified under Information Disclosure. CVSS score: 4.7/10. Published 2023-10-17.

How severe is CVE-2023-5339?

Medium severity. CVSS v3 base score is 4.7 out of 10.

Is CVE-2023-5339 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Information disclosure in Mattermost

CVE-2023-5339

Mattermost Desktop fails to set an appropriate log level during initial run after fresh installation resulting in logging all keystrokes including password entry being logged.

Vulnerability class: Information Disclosure

EPSS: 0.001 (4.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Mattermost — versions 0, 5.5.0
Mattermost Mattermost_desktop

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

responsibledisclosure@mattermost.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-5339?: CVE-2023-5339 is a medium-severity vulnerability in Mattermost, classified under Information Disclosure. CVSS score: 4.7/10. Published 2023-10-17.
How severe is CVE-2023-5339?: Medium severity. CVSS v3 base score is 4.7 out of 10.
Is CVE-2023-5339 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.