Description
Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link.

Published: 2023-05-29
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

Vendor Solution

Update Mattermost to version v7.1.9, v7.8.4, v7.9.3, v7.10, or higher.

Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2023-34261 Mattermost fails to normalize UTF confusable characters when determining if a preview should be generated for a hyperlink, allowing an attacker to trigger link preview on a disallowed domain using a specially crafted link.
References
History

Fri, 06 Dec 2024 23:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Subscriptions

Mattermost Mattermost
cve-icon MITRE

Status: PUBLISHED

Assigner: Mattermost

Published:

Updated: 2024-12-06T23:04:02.110Z

Reserved: 2023-05-19T09:34:03.996Z

Link: CVE-2023-2808

cve-icon Vulnrichment

Updated: 2024-08-02T06:33:05.597Z

cve-icon NVD

Status : Modified

Published: 2023-05-29T10:15:10.083

Modified: 2024-11-21T07:59:19.863

Link: CVE-2023-2808

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses