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01 Record

CVE-2024-6428

Limited DoS due to permitting creating users with user-defined IDs

MediumPUBLISHEDCNA: Mattermost
CNA base score5.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

02 Description

Limited DoS due to permitting creating users with user-defined IDs

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.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • 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
0.39% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 33.3% of scored records. A rank, not a probability.
NVD base score
6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
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
2024-07-03 08:39Z2 YR AGO
Last updated
2024-08-01 21:41Z2 YR AGO
Reserved
2024-07-01
Assigning CNA
Mattermost
Record state
PUBLISHED
Severity
Medium (CVSS 5.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
  • CWE-284Improper Access ControlPillar
Data version
5.1
Document digest
d4c1e8dbe60338b4f281a0eaec3d2a6af811f2dc5c92ce9c60def60e5ed261f8

05 Affected products

VendorProductVersionsPlatforms
MattermostMattermost9.8.0, 9.7.0 to 9.7.4, 9.6.0 to 9.6.2, 9.5.0 to 9.5.5—

06 References

07 Remediation

Update Mattermost to versions 9.9.0, 9.8.1, 9.7.5, 9.6.3, 9.5.6 or higher.