cvelist/2021/43xxx/CVE-2021-43850.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-43850",
        "STATE": "PUBLIC",
        "TITLE": "Denial of Service in discourse"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "discourse",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "< 2.7.12"
                                        },
                                        {
                                            "version_value": ">= 2.8.0.beta, < 2.8.0.beta10"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "discourse"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Discourse is an open source platform for community discussion. In affected versions admins users can trigger a Denial of Service attack via the `/message-bus/_diagnostics` path. The impact of this vulnerability is greater on multisite Discourse instances (where multiple forums are served from a single application server) where any admin user on any of the forums are able to visit the `/message-bus/_diagnostics` path. The problem has been patched. Please upgrade to 2.8.0.beta10 or 2.7.12. No workarounds for this issue exist."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:N/A:H",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-20: Improper Input Validation"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/discourse/discourse/security/advisories/GHSA-59jr-pj65-qmvr",
                "refsource": "CONFIRM",
                "url": "https://github.com/discourse/discourse/security/advisories/GHSA-59jr-pj65-qmvr"
            },
            {
                "name": "https://github.com/discourse/discourse/commit/7a8ec129fb54f188b2da6588c9d24d3a36eb0d39",
                "refsource": "MISC",
                "url": "https://github.com/discourse/discourse/commit/7a8ec129fb54f188b2da6588c9d24d3a36eb0d39"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-59jr-pj65-qmvr",
        "discovery": "UNKNOWN"
    }
}