{ "id": "CVE-2023-2793", "sourceIdentifier": "responsibledisclosure@mattermost.com", "published": "2023-06-16T10:15:09.270", "lastModified": "2023-06-26T17:45:53.867", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.\n\n" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 3.6 }, { "source": "responsibledisclosure@mattermost.com", "type": "Secondary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM" }, "exploitabilityScore": 2.8, "impactScore": 3.6 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "CWE-400" } ] }, { "source": "responsibledisclosure@mattermost.com", "type": "Secondary", "description": [ { "lang": "en", "value": "CWE-400" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.8.0", "versionEndIncluding": "7.8.3", "matchCriteriaId": "5CD5238E-205F-43CF-9487-8956194F4950" }, { "vulnerable": true, "criteria": "cpe:2.3:a:mattermost:mattermost:*:*:*:*:*:*:*:*", "versionStartIncluding": "7.9.0", "versionEndIncluding": "7.9.2", "matchCriteriaId": "C0B8C4AA-4D8D-4AE3-953E-990360DD57F9" }, { "vulnerable": true, "criteria": "cpe:2.3:a:mattermost:mattermost:7.10.0:*:*:*:*:*:*:*", "matchCriteriaId": "980D0FB9-D2FF-4C31-BC92-07073A8F4BB3" } ] } ] } ], "references": [ { "url": "https://mattermost.com/security-updates/", "source": "responsibledisclosure@mattermost.com", "tags": [ "Vendor Advisory" ] } ] }