Vulnerabilities / Post Carousel / WPSEC-2026-1454
Post Carousel <= 4.0.8 - Unauthenticated Non-Public Post Type Information Exposure via Smart Search REST Endpoint
Medium 5.3
CWE-200Fixed in 4.0.9
- ID
- WPSEC-2026-1454
- Plugin
- Smart Post – Post Grid, Post Carousel, Post Slider Gutenberg Blocks for Blog & News (post-carousel)
- Affected
- from 4.0.0 before 4.0.9
- Remediation
- Update to 4.0.9 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness
- CWE-200
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-22
- Attack surface
- Post Carousel on WPSec AttackSurface
- Fix released
- Published
Description
The Smart Post plugin for WordPress is vulnerable to Sensitive Information Exposure via the sps-blocks/v2/smart-search REST endpoint and the sp_smart_post_block_post_query AJAX action in all versions from 4.0.0 up to, and including, 4.0.8. This is due to these post queries using a request-supplied post type without restricting it to public post types. This makes it possible for unauthenticated attackers to retrieve titles, excerpts, authors and other details of published entries of non-public post types, such as WooCommerce coupons or other plugins' internal records.
References
- https://wpsec.com/vuln/WPSEC-2026-1454/
- https://plugins.svn.wordpress.org/post-carousel/tags/4.0.9/
- https://wordpress.org/plugins/post-carousel/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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