CVE-2023-6458
CVE-2023-6458 is a high-severity vulnerability in Mattermost Mattermost Server with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- EPSS exploit prediction: 1% (46th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Mattermost Mattermost Server
- Published:
- Last modified:
Description
Mattermost webapp fails to validate route parameters in/<TEAM_NAME>/channels/<CHANNEL_NAME> allowing an attacker to perform a client-side path traversal.
Frequently asked questions
- What is 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.
- How severe is CVE-2023-6458?
- CVE-2023-6458 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity high, and availability low.
- Is CVE-2023-6458 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-6458?
- CVE-2023-6458 affects Mattermost Mattermost Server. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-6458?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2023-6458 published?
- CVE-2023-6458 was published on 2023-12-06 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
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