{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-63223",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-07-15T22:19:06.907Z",
        "datePublished": "2026-07-31T04:10:28.179Z",
        "dateUpdated": "2026-07-31T23:16:24.574Z"
    },
    "containers": {
        "cna": {
            "title": "CodeIgniter: Uploaded file extension validation bypass in is_image and mime_in rules",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-434",
                            "lang": "en",
                            "description": "CWE-434: Unrestricted Upload of File with Dangerous Type",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL",
                        "confidentialityImpact": "HIGH",
                        "integrityImpact": "HIGH",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-mmj4-63m4-r6h5",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-mmj4-63m4-r6h5"
                },
                {
                    "name": "https://github.com/codeigniter4/CodeIgniter4/commit/b6e9a4fa1dca2df3d3f261bdf61532df8c6420aa",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/codeigniter4/CodeIgniter4/commit/b6e9a4fa1dca2df3d3f261bdf61532df8c6420aa"
                },
                {
                    "name": "https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/codeigniter4/CodeIgniter4/releases/tag/v4.7.4"
                }
            ],
            "affected": [
                {
                    "vendor": "codeigniter4",
                    "product": "CodeIgniter4",
                    "versions": [
                        {
                            "version": "< 4.7.4",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-07-31T04:10:28.179Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "CodeIgniter is a PHP full-stack web framework. Prior to 4.7.4, the is_image and mime_in upload validation rules do not independently enforce a safe client filename extension, allowing a remote attacker to upload executable content when an application preserves the client filename and stores uploads in a web-accessible script-enabled directory. Applications are impacted when they validate uploads using is_image or mime_in without an independent safe extension check (such as ext_in on patched versions), save uploaded files using the client-supplied filename, and place uploads in a web-accessible directory where PHP files can execute. This issue is fixed in version 4.7.4."
                }
            ],
            "source": {
                "advisory": "GHSA-mmj4-63m4-r6h5",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-31T23:16:12.858974Z",
                                "id": "CVE-2026-63223",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-31T23:16:24.574Z"
                }
            }
        ]
    }
}