CVE-2026-61457 | BDVDB-2026-348754 Detail

Description#

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.

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Exploit#

History#

1. Version 12026-07-15Record published in the CVE List.
2. Version 22026-07-28Most recent update recorded in the CVE List.