CVE-2026-78149: Unknown Smart Post

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

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 products

• Unknown Smart Post: from 4.0.0, before 4.0.8 (fixed in 4.0.8)

Published 2026-09-05. Last modified 2026-09-08.