cvelist/2021/26xxx/CVE-2021-26540.json

{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-26540",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "n/a"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Apostrophe Technologies sanitize-html before 2.3.2 does not properly validate the hostnames set by the \"allowedIframeHostnames\" option when the \"allowIframeRelativeUrls\" is set to true, which allows attackers to bypass hostname whitelist for iframe element, related using an src value that starts with \"/\\\\example.com\"."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "url": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26",
                "refsource": "MISC",
                "name": "https://github.com/apostrophecms/sanitize-html/blob/main/CHANGELOG.md#232-2021-01-26"
            },
            {
                "url": "https://github.com/apostrophecms/sanitize-html/pull/460",
                "refsource": "MISC",
                "name": "https://github.com/apostrophecms/sanitize-html/pull/460"
            },
            {
                "refsource": "MISC",
                "name": "https://advisory.checkmarx.net/advisory/CX-2021-4309",
                "url": "https://advisory.checkmarx.net/advisory/CX-2021-4309"
            }
        ]
    }
}