{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"cveId": "CVE-2023-2808", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "state": "PUBLISHED", "assignerShortName": "Mattermost", "dateReserved": "2023-05-19T09:34:03.996Z", "datePublished": "2023-05-29T09:07:34.768Z", "dateUpdated": "2023-05-29T09:07:34.768Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThan": "7.1.9", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "7.8.4", "status": "affected", "version": "0", "versionType": "semver"}, {"lessThan": "7.9.3", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "7.1.9"}, {"status": "unaffected", "version": "7.8.4"}, {"status": "unaffected", "version": "7.9.3"}, {"status": "unaffected", "version": "7.10"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "xpx"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<div>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.</div>"}], "value": "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.\n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-20", "description": "CWE-20 Improper Input Validation", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2023-05-29T09:07:34.768Z"}, "references": [{"url": "https://mattermost.com/security-updates/"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Update Mattermost to version v7.1.9, v7.8.4, v7.9.3, v7.10, or higher.<br>"}], "value": "Update Mattermost to version v7.1.9, v7.8.4, v7.9.3, v7.10, or higher.\n"}], "source": {"advisory": "MMSA-2023-00159", "defect": ["https://mattermost.atlassian.net/browse/MM-51442"], "discovery": "EXTERNAL"}, "title": "Lack of URL normalization allows rendering previews for disallowed domains", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

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