CVE-2026-78149: Post Carousel 4.0.0 - 4.0.7 - Unauthenticated Password-Protected Post Content and post_password Disclosure via sp_handle_post_id
Published Sep 5, 2026
·Updated
The Smart Post WordPress plugin before 4.0.8 does not check whether a post is password protected before returning its content and its stored password through an unauthenticated AJAX action, allowing unauthenticated users to read protected post content and the password that guards it.
Affected Software
1 affected component
WordPress plugin "Smart Post"<4.0.8
Event History
Sep 5, 2026
CVE Published
via MITRE·06:00 AM
Data Sourced
via MITRE·06:00 AM
DescriptionWeakness
Frequently Asked Questions
1
Which plugin versions are affected?
Smart Post versions before 4.0.8 are affected, including versions 4.0.0 through 4.0.7.
2
Does an attacker need to authenticate to retrieve protected content?
No. The vulnerable AJAX action can be accessed without authentication.
3
What information can be exposed?
An attacker can retrieve the content of password-protected posts and the stored post_password value that protects them.