CVE-2023-6458: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

December 6, 2023 (updated December 8, 2023)

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

References

github.com/advisories/GHSA-7664-hcp7-f497
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2023-6458

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