wp-includes/rest-api/endpoints/class-wp-rest-plugins-controller.php:211Checks if the given plugin can be viewed by the current user.
$pluginstringtrue|WP_Error protected function check_read_permission( $plugin ) { require_once ABSPATH . 'wp-admin/includes/plugin.php'; if ( ! $this->is_plugin_installed( $plugin ) ) { return new WP_Error( 'rest_plugin_not_found', __( 'Plugin not found.' ), array( 'status' => 404 ) ); } if ( ! is_multisite() ) { return true; } if ( ! is_network_only_plugin( $plugin ) || is_plugin_active( $plugin ) || current_user_can( 'manage_network_plugins' ) ) { return true; } return new WP_Error( 'rest_cannot_view_plugin', __( 'Sorry, you are not allowed to manage this plugin.' ), array( 'status' => rest_authorization_required_code() ) ); }Introduced in 5.5.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/rest-api/endpoints/class-wp-rest-plugins-controller.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.