This wp_query will not return any posts and only seems to work with post_status inherit?

This part require('./wp-blog-header.php'); is all kinds of bad idea. And if your file is indeed in plugin folder then header isn’t even in that location.

Custom loads of WordPress core are brittle and the technique is typically only justifiable for performance reasons.

It would be better to structure your endpoint via creating actual rewrite endpoint, or making use of admin-ajax.php/admin-post.php.

Related Posts:

  1. Retrieving 3 latest post from each of 5 different custom post types
  2. Sorting a list of posts displayed under a list of associated terms (which should be sorted without initial articles)
  3. Query to get the author who having maximum number of post (custom post type)
  4. Quickest way to get last or oldest post date – WP Query
  5. Stuck in Order by more then one
  6. Including metaboxes from custom post types in global search — continued
  7. Query Multiple Custom Posts by Custom Fields
  8. Group by custom field value (start and end times)
  9. A faster way to query custom post types with multiple conditions?
  10. Get posts by category name
  11. How to properly use Categories with Custom Post Types
  12. date_query empty results with custom post type
  13. WP_query has incorrect wp_posts.post_name = ‘asc’ when I have custom post type called ‘order’
  14. Query a custom taxonomy in a function to create an csv file
  15. Query posts based on user preferences
  16. Why get_posts() returns empty array while I am trying to get posts from some specific taxonomies and work properly with others?
  17. Get post from Category by Priority
  18. How can you use a page for a custom post type?
  19. Custom post order when using OR relation
  20. Query posts by a type and another type only if post is in specific category
  21. shortcode for recent custom type post
  22. How do I correctly query posts from a post ID?
  23. Get Posts in a Custom Post Type category
  24. Getting the Intersection of Two Custom Taxonomy Terms for a Custom Post Type?
  25. Displaying Posts Related to Other Posts by a Taxonomy Term?
  26. How to query for posts (in hierarchical custom post type) that have children?
  27. Combine tax_query and meta_query in WP_Query
  28. Should unaltered default loop/query return a list of custom posts belonging to a custom taxonomy?
  29. WP_Query pagination using only numbers instead of /page/1 on URL
  30. Query for posts in 2 taxonomies
  31. SELECT * FROM $wpdb->posts WHERE ID > 160
  32. Parent / Child formatting in a list of post of a custom post type
  33. How do I create an archive page for standard posts?
  34. Multiple post type queries (with specific arguments for each)
  35. Custom Post Type Loop within Shortcode
  36. Combining sorted and random CPT
  37. How to add post_type=value when editing that post type in the WordPress admin?
  38. Display CPT posts based on specific taxonomy
  39. WP_Query: include custom post type only with specific meta value
  40. showing custom post types of a certain category only
  41. Filtering WP_Query Dynamically on the Front-End
  42. Why get_posts() not returning only selected category posts from Custom Post Type?
  43. Custom taxonomies relationship
  44. Prioritize posts in query by meta keys?
  45. WP_Query orderby and tax_query
  46. Configuring a meta query with multiple post types that have the same relationship on a single page
  47. Different Ways to Query Custom Post Types?
  48. Possible to filter custom post type with multiple meta data?
  49. Loop increase number
  50. Front end access to a SQL data repository – recommended way?
  51. Custom filter for main search: how to exclude specific post_type from search results
  52. Inefficient Query Confusion
  53. how to get this tax_query working?
  54. find custom post type post by searching its custom field with my string
  55. wordpress lists similar type of posts in a custom post type
  56. FacetWP paging custom wp_query
  57. Custom post type and custom taxonomy 404 on page 2
  58. Cannot get custom posts by category
  59. Shortcode with WP_Query more than once on one page
  60. Why the_excerpt() function returns excerpt on the Home page and trimmed content in sidebar?
  61. list posts of two post types in a single template
  62. Using WP meta query to show custom post types by a start and finish date
  63. How do I list a custom field and custom taxonomies for each result in a loop?
  64. Getting the list of the latests posts and custom type posts in the homepage
  65. Find Posts based on Child Post value
  66. set object terms after some some time of published post – functions.php
  67. Change search query in wordpress custom post type
  68. Sort custom posts by date and then by taxonomy
  69. Query custom post type that has a serialized relational advanced custom field value
  70. Custom post type data not displaying If I select the category from the dropdonw
  71. build child and anchestor three from post parent
  72. Limiting the Number of User Posts to Their Own Posts
  73. How can I query and sort custom-post type using WP_Query
  74. Custom query result empty on page 2
  75. How select query is generated in a Custom Post Type?
  76. WordPress doesn’t respect Page slug in custom post type url pagination. Keeps getting removed
  77. Output all terms slugs for a loop filter
  78. Post Query , breaks layout if a post is deleted
  79. Not able to get my custom search result using meta_query and tax_query together?
  80. Multiple WordPress Sites, Same Database but Filtered Content
  81. Error get_posts with Custom Taxonomy and OR relation
  82. Custom Field as Custom Post type element class
  83. Display posts on parent post if author coincides
  84. WordPress query in which condition uses custom field
  85. How to get Current week and current date record wp query
  86. Error in WP Query. If variable is empty it is displaying previous post value
  87. Certain number of posts with certain excerpt length
  88. WP_Query for CPT with filter by another WP_Query
  89. Is it possible to add query parameters on the archive page?
  90. Query stopped working
  91. WP_Query and two custom fields returns no posts
  92. Storing/querying custom date data
  93. Query Posts From Multiple Post Types
  94. Custom Post-type not returning the right child_of
  95. How do I hide single category post on my post page
  96. show custom post’s post in two different divs [duplicate]
  97. Get images only from a certain post type
  98. querying to custom field over ACF REST API
  99. WP Query + custom fields: How to query event posts from the current date backwards 6 months and organize it month by month?
  100. How do I get parameters from the URL?