high8.8
CVE-2026-61457
The Grav API plugin (getgrav/grav-plugin-api) before 1.0.3 contains a file upload extension bypass in the API media controller.
Impact
The Grav API plugin (getgrav/grav-plugin-api) before 1.0.3 contains a file upload extension bypass in the API media controller. HandlesMediaUploads::validateFileExtension() inspects only the final file extension via pathinfo($filename, PATHINFO_EXTENSION), so a user with api.media.write permission can upload a file with a double extension such as shell.php.jpg to bypass the dangerous extensions blocklist. The web server may then execute the file as PHP, resulting in remote code execution.
Affected products
| Product | Affected versions |
|---|---|
| Grav API Plugin (Getgrav/Grav-Plugin-Api) | before 1.0.3 |
Versions were read from the advisory text. No structured product data has been published for this record yet.