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01 Record

CVE-2023-5339

Mattermost Desktop logs all keystrokes during initial run after fresh installation

MediumPUBLISHEDCNA: Mattermost
CNA base score4.7 CVSS v3.xCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

02 Description

Mattermost Desktop logs all keystrokes during initial run after fresh installation

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.14% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 3.7% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-10-17 09:30Z3 YR AGO
Last updated
2024-09-05 19:46Z2 YR AGO
Reserved
2023-10-02
Assigning CNA
Mattermost
Record state
PUBLISHED
Severity
Medium (CVSS 4.7)
CNA CVSS vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
Weaknesses
  • CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass
  • CWE-532Insertion of Sensitive Information into Log FileBase
Data version
5.1
Document digest
b684e83b703dd6baee2274738bee190ad11ba87b75bcba56596da95f1a02146d

05 Affected products

VendorProductVersionsPlatforms
MattermostMattermost0 to 5.4.0—

06 References

07 Remediation

Update Mattermost Desktop to versions 5.5.0 or higher.