cvelist/2021/43xxx/CVE-2021-43794.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-43794",
        "STATE": "PUBLIC",
        "TITLE": "Anonymous user cache poisoning via development-mode header in Discourse"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "discourse",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "stable < 2.7.11"
                                        },
                                        {
                                            "version_value": "beta < 2.8.0.beta9"
                                        },
                                        {
                                            "version_value": "tests-passed < 2.8.0.beta9"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "discourse"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Discourse is an open source discussion platform. In affected versions an attacker can poison the cache for anonymous (i.e. not logged in) users, such that the users are shown a JSON blob instead of the HTML page. This can lead to a partial denial-of-service. This issue is patched in the latest stable, beta and tests-passed versions of Discourse."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-610: Externally Controlled Reference to a Resource in Another Sphere"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1",
                "refsource": "MISC",
                "url": "https://github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1"
            },
            {
                "name": "https://github.com/discourse/discourse/security/advisories/GHSA-249g-pc77-65hp",
                "refsource": "CONFIRM",
                "url": "https://github.com/discourse/discourse/security/advisories/GHSA-249g-pc77-65hp"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-249g-pc77-65hp",
        "discovery": "UNKNOWN"
    }
}