Problem: If you're using the ffraenz/private-composer-installer for WPML updates and encountering a 403 Forbidden error during the download process, despite correct credentials, this might be due to how requests are handled. Specifically, requests made with a Composer User-Agent are not following the normal download flow and are instead being blocked, likely at the WAF/CDN level. Solution: Currently, WPML installation and updates via Composer are not officially supported, as indicated here: https://wpml.org/errata/composer-installation-of-wpml-not-officially-supported-yet/. This means that setups like ffraenz/private-composer-installer might behave inconsistently. We recommend checking if explicitly setting a specific plugin version in your Composer config instead of relying on 'latest' helps. Also, verify if the same method still works with other plugins to determine if the issue is WPML-specific or more general.
If this solution does not resolve your issue or seems irrelevant due to updates or changes, we highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If the problem persists, please open a new support ticket at WPML support forum for further assistance.
