CVE-2023-2808

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Source
https://cve.org/CVERecord?id=CVE-2023-2808
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-2808.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-2808
Published
2023-05-29T10:15:10.083Z
Modified
2026-03-14T12:00:20.893803Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
[none]
Details

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

Affected packages

Git / github.com/mattermost/mattermost-server

Affected ranges

Type
GIT
Repo
https://github.com/mattermost/mattermost-server
Events
Introduced
f86ca3ed0a33440f144088fde9d3e002f749e95f
Fixed
96cf6c0f7a0c2e98815dbd9397c8de79528ae306
Introduced
87cbeafd363557615354cdf622adf3929f73e561
Fixed
b3eb2e451e18b4003634954c2c4be678695dc26a
Introduced
c4d8c1450ab2b9538bbc2690ca1ee865567a5888
Fixed
27b2437e0f93d3f48b9caebdceb7795b64d5cd9f
Database specific 
{
    "versions": [
        {
            "introduced": "5.34.0"
        },
        {
            "fixed": "7.1.9"
        },
        {
            "introduced": "7.2.0"
        },
        {
            "fixed": "7.8.4"
        },
        {
            "introduced": "7.9.0"
        },
        {
            "fixed": "7.9.3"
        }
    ]
}

Affected versions

v7.*
v7.9.0
v7.9.1
v7.9.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-2808.json"