Is CVE-2023-6458 actively exploited?

No active exploitation of CVE-2023-6458 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-6458 be exploited remotely?

Yes. CVE-2023-6458 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-6458?

CVE-2023-6458 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2023-6458

CRITICAL

CVE-2023-6458

CWE-74Published: December 6, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

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

NVD Source

Risk Analysis

Mattermost webapp contains a path traversal vulnerability due to insufficient validation of route parameters. With a CVSS score of 9.8, this critical flaw allows unauthenticated remote attackers to compromise the system.

There is no known public exploit for this vulnerability, and it is not listed in the CISA KEV catalog.

Recommended Action

Users should apply the latest security patches provided by Mattermost to address the parameter validation issue.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-6458 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.