# Ajax Search Lite <= 4.14.5 - Unauthenticated Sensitive Information Exposure via 'customset' Post Type Selection

- **ID:** WPSEC-2026-0994
- **Plugin:** Ajax Search Lite – Live Search & Filter (`ajax-search-lite`), https://wordpress.org/plugins/ajax-search-lite/
- **Affected versions:** all versions before 4.14.6
- **Fixed in:** 4.14.6 (Update to 4.14.6 or later.)
- **Severity:** Medium 5.3 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
- **Weakness:** CWE-200
- **Usage among sites WPSec scans:** plugin High, affected versions High (as of 2026-10-15)
- **Attack surface analysis:** https://attacksurface.wpsec.com/plugin/ajax-search-lite
- **Fix released:** 2026-10-14
- **Published:** 2026-10-15
- **URL:** https://wpsec.com/vuln/WPSEC-2026-0994/

## Description

The Ajax Search Lite plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 4.14.5, due to the unauthenticated ajaxsearchlite_search action accepting any post type sent in the 'customset' option instead of limiting it to the configured post types. This makes it possible for unauthenticated attackers to search non-public post types the administrator did not expose, such as WooCommerce coupons, stored form messages or templates, and read their titles and content, for posts in a searched status (published by default).

## References

- https://wpsec.com/vuln/WPSEC-2026-0994/
- https://plugins.svn.wordpress.org/ajax-search-lite/tags/4.14.6/
- https://wordpress.org/plugins/ajax-search-lite/

Source: WPSec, https://wpsec.com/vuln/WPSEC-2026-0994/

License: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Free to use, share and adapt, also commercially, if you credit WPSec and link to this advisory.