CVE-2026-71434 Statamic: Missing file upload validation on frontend forms allows uploading disallowed file types
Unauthenticated attackers can upload disallowed file types via public frontend forms, bypassing administrator restrictions on file uploads.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-71434?
CVE-2026-71434 is a medium-severity vulnerability in statamic cms, published on 6 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Statamic is a Laravel and Git powered content management system (CMS). Prior to 5.74.3 and 6.24.2, 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, and for assets fields, files could be stored on a public, web-accessible disk, though the application's global upload allowlist still blocked executable types such as .php and .html. This issue is fixed in versions 5.74.3 and 6.24.2.
Weakness: CWE-434
Which versions are affected by CVE-2026-71434?
4 open source packages ship an affected version, including statamic/cms.
| Package | Affected | Fixed in |
|---|---|---|
statamic/cms Packagist | All versions | 5.74.3 |
statamic/cms Packagist | All versions | 5.74.3 |
statamic/cms Packagist | From 6.0.0 | 6.24.2 |
statamic/cms Packagist | From 6.0.0 | 6.24.2 |
How do I fix CVE-2026-71434?
Upgrade statamic/cms to a fixed version for your release line: 5.74.3 or 6.24.2.
Is CVE-2026-71434 being exploited?
There is no known exploitation of CVE-2026-71434 in the wild and no public exploit code.
Sources
Also known as GHSA-qhr7-v3xp-vw9m.