{"dataType": "CVE_RECORD", "dataVersion": "5.0", "cveMetadata": {"cveId": "CVE-2023-5522", "assignerOrgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "state": "PUBLISHED", "assignerShortName": "Mattermost", "dateReserved": "2023-10-11T12:14:11.518Z", "datePublished": "2023-10-17T09:41:14.833Z", "dateUpdated": "2023-10-17T09:41:14.833Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "product": "Mattermost", "vendor": "Mattermost", "versions": [{"lessThan": "2.8.0", "status": "affected", "version": "0", "versionType": "semver"}, {"status": "unaffected", "version": "2.8.0"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "\u0160imon \u010cech\u00e1\u010dek"}], "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Mattermost Mobile fails to limit&nbsp;the maximum number of Markdown elements in a post allowing an attacker to s<span style=\"background-color: rgb(255, 255, 255);\">end a post with </span><span style=\"background-color: rgb(255, 255, 255);\">hundreds of emojis to a channel and</span>&nbsp;freeze the mobile app of users when viewing that particular channel.&nbsp;</p>"}], "value": "Mattermost Mobile fails to limit\u00a0the maximum number of Markdown elements in a post allowing an attacker to send a post with hundreds of emojis to a channel and\u00a0freeze the mobile app of users when viewing that particular channel.\u00a0\n\n"}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-400", "description": "CWE-400 Uncontrolled Resource Consumption", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "9302f53e-dde5-4bf3-b2f2-a83f91ac0eee", "shortName": "Mattermost", "dateUpdated": "2023-10-17T09:41:14.833Z"}, "references": [{"url": "https://mattermost.com/security-updates"}], "solutions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "<p>Update Mattermost Mobile to versions 2.8.0 or higher.</p>"}], "value": "Update Mattermost Mobile to versions 2.8.0 or higher.\n\n"}], "source": {"advisory": "MMSA-2023-00226", "defect": ["https://mattermost.atlassian.net/browse/MM-53106"], "discovery": "EXTERNAL"}, "title": "Mobile app freezes when receiving a post with hundreds of emojis", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}}}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:android:*:*", "matchCriteriaId": "5CDF40BF-82EB-4109-A6A8-BE16F18604DB", "versionEndExcluding": "2.8.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:iphone_os:*:*", "matchCriteriaId": "98266404-FB76-4221-8E3B-AC6C018F3CD8", "versionEndExcluding": "2.8.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "Mattermost Mobile fails to limit\u00a0the maximum number of Markdown elements in a post allowing an attacker to send a post with hundreds of emojis to a channel and\u00a0freeze the mobile app of users when viewing that particular channel.\u00a0\n\n"}, {"lang": "es", "value": "Mattermost Mobile no limita la cantidad m\u00e1xima de elementos Markdown en una publicaci\u00f3n, lo que permite a un atacante enviar una publicaci\u00f3n con cientos de emojis a un canal y congelar la aplicaci\u00f3n m\u00f3vil de los usuarios cuando ven ese canal en particular."}], "id": "CVE-2023-5522", "lastModified": "2023-10-24T18:56:18.113", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}]}, "published": "2023-10-17T10:15:10.427", "references": [{"source": "responsibledisclosure@mattermost.com", "tags": ["Vendor Advisory"], "url": "https://mattermost.com/security-updates"}], "sourceIdentifier": "responsibledisclosure@mattermost.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-400"}], "source": "responsibledisclosure@mattermost.com", "type": "Secondary"}]}

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