getgrav/grav · error · RuntimeException

sprintf($grav['language']->translate('PLUGIN_FORM.FILEUPLOAD

Error message

sprintf($grav['language']->translate('PLUGIN_FORM.FILEUPLOAD_UNABLE_TO_UPLOAD', null, true), $filename, 'Bad filename')

What it means

Error "sprintf($grav['language']->translate('PLUGIN_FORM.FILEUPLOAD_UNABLE_TO_UPLOAD', null, true), $filename, 'Bad filename')" thrown in getgrav/grav.

Source

Thrown at system/src/Grav/Framework/Form/Traits/FormTrait.php:804

            } else {
                $this->validateUploads($file);
            }
        }
    }

    /**
     * Validate uploaded file.
     *
     * @param UploadedFileInterface $file
     * @return void
     */
    protected function validateUpload(UploadedFileInterface $file): void
    {
        // Handle bad filenames.
        $filename = $file->getClientFilename();
        if ($filename && !Utils::checkFilename($filename)) {
            $grav = Grav::instance();
            throw new RuntimeException(
                sprintf($grav['language']->translate('PLUGIN_FORM.FILEUPLOAD_UNABLE_TO_UPLOAD', null, true), $filename, 'Bad filename')
            );
        }

        if ($file instanceof FormFlashFile) {
            $file->checkXss();
        }
    }

    /**
     * Decode POST data
     *
     * @param array $data
     * @return array
     */
    protected function decodeData($data): array
    {
        if (!is_array($data)) {

View on GitHub (pinned to 6040efed04)

When it happens

Trigger: Thrown at system/src/Grav/Framework/Form/Traits/FormTrait.php:804 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of getgrav/grav@6040efed04 (2026-08-17). Data as JSON: /api/errors/315fa47cdfde64ee. Report an issue: GitHub.