What is CVE-2023-6458?

CVE-2023-6458 is a high-severity vulnerability in Mattermost, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.1/10. Published 2023-12-06.

How severe is CVE-2023-6458?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2023-6458 known to be exploited?

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

Path Traversal in Mattermost

CVE-2023-6458

Mattermost webapp fails to validate route parameters in/<TEAM_NAME>/channels/<CHANNEL_NAME> allowing an attacker to perform a client-side path traversal.

EPSS: 0.006 (47.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L.

Affected products

Mattermost — versions 0, 9.1.2, 9.0.3
Mattermost Mattermost_server

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-2023-6458?: CVE-2023-6458 is a high-severity vulnerability in Mattermost, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.1/10. Published 2023-12-06.
How severe is CVE-2023-6458?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2023-6458 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.