GHSA-qhr7-v3xp-vw9m Statamic: Missing file upload validation on frontend forms allows uploading disallowed file types

• Packagist statamic/cms: < 5.74.3 → fixed in 5.74.3 • Packagist statamic/cms: >= 6.0.0, < 6.24.2 → fixed in 6.24.2

Impact Public frontend forms did not enforce the file upload restrictions that the Control Panel enforces, so an unauthenticated visitor could upload file types an administrator had intended to disallow through a form's `assets` or `files` field. For `assets` fields, files could be stored on a public, web-accessible disk. Statamic's global upload allowlist still applied, so executable types such as `.php` and `.html` remained blocked. Patches This has been fixed in 5.74.3 and 6.24.2.