{"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": "2026-07-31T04:10:28.179Z"}, "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"}}}}

{}

{}

{}

{}