shinthink/CVE-2026-63223

PoC

CVE-2026-63223 — CI4RCE: CodeIgniter 4 is_image/mime_in File Upload RCE. Magic bytes bypass (getExtension vs getClientExtension). CVSS 9.8 | CWE-434 | CI4 < 4.7.4

view exploit source poc_in_githubauthor shinthinkpublished 2026-08-04catalog poc_in_github

exploited CVEs (1)

Known CVEs related to this entry.

ID	severity	EPSS	exploitable	published
CVE-2026-63223US	—	0.80% (56th)	Exploit	2026-07-31
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, allow…

scry

Working exploits like this target internet-facing systems. See what is exposed on your perimeter with a free passive scan.

Free scan