WordPress · Child Height Predictor · CVE-2026-6400
**Name of the Vulnerable Software and Affected Versions**
Child Height Predictor by Ostheimer versions prior to 1.4
**Description**
The plugin is susceptible to Cross-Site Request Forgery (CSRF), a flaw where an attacker tricks a user into performing actions they did not intend to. This occurs because the `options()` function, which manages plugin settings updates, lacks nonce verification. A nonce is a unique token used to ensure that a request was intentionally sent by the user. Specifically, the form template lacks a `wp nonce field()` call, and the handler does not utilize `check admin referer()` or `wp verify nonce()`. Consequently, unauthenticated attackers can deceive a site administrator into clicking a malicious link or visiting a page that submits a forged POST request, leading to unauthorized changes in plugin settings, such as unit preferences, being saved to the database via `update option()`.
**Recommendations**
Update the plugin to a version later than 1.3.
As a temporary workaround, restrict access to the plugin settings page to only trusted administrators until the update is applied.