CRITICAL: codeigniter4/framework — CodeIgniter: Uploaded file extension validation bypass in `is_image` and `mime_in` rules
Impact This is an unsafe file upload validation vulnerability that can lead to remote code execution in vulnerable application configurations. Applications are impacted when they: - validate uploads using isimage or mimein without an independent safe…
Source codeigniter4/frameworkPublished 7d ago · Aug 7, 2026Posted on Bluesky
What we hold
- Package
- codeigniter4/framework
- Ecosystem
- composer
- Severity
- CRITICAL
- ID
- CVE-2026-63223
Impact This is an unsafe file upload validation vulnerability that can lead to remote code execution in vulnerable application configurations. Applications are impacted when they: - validate uploads using isimage or mimein without an independent safe…
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