{
    "CVE_data_meta": {
        "ASSIGNER": "security-advisories@github.com",
        "ID": "CVE-2020-4050",
        "STATE": "PUBLIC",
        "TITLE": "set-screen-option filter misuse by plugins leading to privilege escalation in WordPress"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "wordpress-develop",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": ">= 5.4.0, < 5.4.2"
                                        },
                                        {
                                            "version_value": ">= 5.3.0, < 5.3.4"
                                        },
                                        {
                                            "version_value": ">= 5.2.0, < 5.2.7"
                                        },
                                        {
                                            "version_value": ">= 5.1.0, < 5.1.6"
                                        },
                                        {
                                            "version_value": ">= 5.0.0, < 5.0.10"
                                        },
                                        {
                                            "version_value": ">= 4.9.0, < 4.9.15"
                                        },
                                        {
                                            "version_value": ">= 4.8.0, < 4.8.14"
                                        },
                                        {
                                            "version_value": ">= 4.7.0, < 4.7.18"
                                        },
                                        {
                                            "version_value": ">= 4.6.0, < 4.6.19"
                                        },
                                        {
                                            "version_value": ">= 4.5.0, < 4.5.22"
                                        },
                                        {
                                            "version_value": ">= 4.4.0, < 4.4.23"
                                        },
                                        {
                                            "version_value": ">= 4.3.0, < 4.3.24"
                                        },
                                        {
                                            "version_value": ">= 4.2.0, < 4.2.28"
                                        },
                                        {
                                            "version_value": ">= 4.1.0, < 4.1.31"
                                        },
                                        {
                                            "version_value": ">= 4.0.0, < 4.0.31"
                                        },
                                        {
                                            "version_value": ">= 3.9.0, < 3.9.32"
                                        },
                                        {
                                            "version_value": ">= 3.8.0, < 3.8.34"
                                        },
                                        {
                                            "version_value": ">= 3.7.0, < 3.7.34"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "WordPress"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In affected versions of WordPress, misuse of the `set-screen-option` filter's return value allows arbitrary user meta fields to be saved. It does require an admin to install a plugin that would misuse the filter. Once installed, it can be leveraged by low privileged users. This has been patched in version 5.4.2, along with all the previously affected versions via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18, 4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34, 3.7.34)."
            }
        ]
    },
    "impact": {
        "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 3.5,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-288: Authentication Bypass Using an Alternate Path or Channel"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/",
                "refsource": "MISC",
                "url": "https://wordpress.org/news/2020/06/wordpress-5-4-2-security-and-maintenance-release/"
            },
            {
                "name": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-4vpv-fgg2-gcqc",
                "refsource": "CONFIRM",
                "url": "https://github.com/WordPress/wordpress-develop/security/advisories/GHSA-4vpv-fgg2-gcqc"
            },
            {
                "name": "https://github.com/WordPress/wordpress-develop/commit/b8dea76b495f0072523106c6ec46b9ea0d2a0920",
                "refsource": "MISC",
                "url": "https://github.com/WordPress/wordpress-develop/commit/b8dea76b495f0072523106c6ec46b9ea0d2a0920"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2020-8447a3e195",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ODNHXVJS25YVWYQHOCICXTLIN5UYJFDN/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2020-bbedd29391",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/773N2ZV7QEMBGKH6FBKI6Q5S3YJMW357/"
            },
            {
                "refsource": "DEBIAN",
                "name": "DSA-4709",
                "url": "https://www.debian.org/security/2020/dsa-4709"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20200701 [SECURITY] [DLA 2269-1] wordpress security update",
                "url": "https://lists.debian.org/debian-lts-announce/2020/07/msg00000.html"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20200911 [SECURITY] [DLA 2371-1] wordpress security update",
                "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00011.html"
            }
        ]
    },
    "source": {
        "advisory": "GHSA-4vpv-fgg2-gcqc",
        "discovery": "UNKNOWN"
    }
}