Error 403 Forbidden when making post call with jquery ajax call on same domain

Question

I have a webpage( mainmenu.php ) with a javascript function as script in the webpage. The java script function name is : statusHistoryUpdate(status)

This function does a ajax post call to a php file located on the same domain as my webpage. Here is the function code :

                    function statusHistoryUpdate(status)
                    {


                           var data = {
                                reg_no: selectedRegNo,
                                status: status,
                                progress_id : selectedProgress
                            };
                            data = $(this).serialize() + "&" + $.param(data);
                          //alert(data);
                          $.ajax({
                          type: "POST",
                          dataType: "json",
                          url: "../db/statusHistory.php", //Relative or absolute path to response.php file
                          data: data,
                          beforeSend: function(){

                            $('#loading').toggle();
                            //$("#submitbutton").html( "<button id='buttonsubmit' class='btn btn-primary btn-lg btn-block' type='submit' value='Register' disabled> <span class='spinner-border spinner-border-md'></span>Loading..</button>");
                          },
                          success: function(data) {

                              getData();
                          },
                          complete: function(){
                            //$('.ajax-loader').css("visibility", "hidden");
                            $('#loading').toggle();

                          },
                           error: function(xhr, status, error) {
                            alert(xhr.responseText);
                          }
                        });
                    }

You will see my url that I am posting to is url: "../db/statusHistory.php"

This function is called using a button in mainmenu.php .

<button id="'.$progress_id.'" type="button" class="btn btn-primary btn-sm btn-block" onclick="updateStatus('.$progress_id.',\''.$status.'\',\''.$reg_num.'\')">Update Status</button>

All of this worked up until this weekend something changed and now when this post call is executed it gives me an error 403 Forbidden , you dont have permission to access /db/statusHistory.php

This is the alert in the error: part in the ajax call :

I do not know what is causing this, I have checked permissions, I have created a new php file to post to but it still gives me the same error.

I am hosting on a shared hosting server,using php, jquery/3.4.0. I have only access to the shared hosting panel "CPanel" not the linux server.

Here is screen shots of my hosting directory and permissions. My mainmenu.php is in directory phplogin , mainmenu.php makes a post call to statusHistory.php and it is in the directory db

Public html directory :

phplogin Directory :

db Directory :

What should I be doing differently for my post call to work? As I said it did work for about a month and just stopped...

Any help would be appreciated.

More Screenshots chrome developer tools :

Network tab :

Answer 1

如果之前有效，您应该检查您的.htaccess文件，该文件位于您网站的根目录中。

Answer 2

I have been struggling for 2 days now trying to figure out what is the problem, it turns out the problem was mod_security I disabled mod_security for my domain and my problem was resolved, I will contact my hosting company and ask them to properly do the setup.

Not sure why it just started happening.