cvelist/2021/29xxx/CVE-2021-29434.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2021-29434",
        "STATE": "PUBLIC",
        "TITLE": "Improper validation of URLs ('Cross-site Scripting') in Wagtail rich text fields"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "wagtail",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "<= 2.11.6"
                                        },
                                        {
                                            "version_value": ">= 2.12, <= 2.12.3"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "wagtail"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Wagtail is a Django content management system. In affected versions of Wagtail, when saving the contents of a rich text field in the admin interface, Wagtail does not apply server-side checks to ensure that link URLs use a valid protocol. A malicious user with access to the admin interface could thus craft a POST request to publish content with `javascript:` URLs containing arbitrary code. The vulnerability is not exploitable by an ordinary site visitor without access to the Wagtail admin. See referenced GitHub advisory for additional details, including a workaround. Patched versions have been released as Wagtail 2.11.7 (for the LTS 2.11 branch) and Wagtail 2.12.4 (for the current 2.12 branch)."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.1,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "{\"CWE-79\":\"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')\"}"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fx",
                "refsource": "CONFIRM",
                "url": "https://github.com/wagtail/wagtail/security/advisories/GHSA-wq5h-f9p5-q7fx"
            },
            {
                "name": "https://pypi.org/project/wagtail/",
                "refsource": "MISC",
                "url": "https://pypi.org/project/wagtail/"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-wq5h-f9p5-q7fx",
        "discovery": "UNKNOWN"
    }
}