Vulnerability · Published May 20, 2026 · Assigned by Wordfence
CVE-2026-6400Child Height Predictor by Ostheimer <= 1.3 - Cross-Site Request Forgery to Settings Update via Plugin Settings Form
Medium 4.3
In plain English
A medium-severity cross-site request forgery in Child Height Predictor by Ostheimer from helpstring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).
Official description
The Child Height Predictor by Ostheimer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to and including 1.3. This is due to missing nonce verification in the options() function, which handles plugin settings updates. The form template does not include a wp_nonce_field() call, and the handler never calls check_admin_referer() or wp_verify_nonce(). This makes it possible for unauthenticated attackers to trick a site administrator into clicking a link or visiting a malicious page that submits a forged POST request, causing unauthorized changes to the plugin settings such as unit preferences to be persisted to the database via update_option().
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| helpstring | Child Height Predictor by Ostheimer | 0 – through 1.3 |
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/dc1681a8-5f2e-45f1-96d9-797b13644607?source=cve
- https://plugins.trac.wordpress.org/browser/child-height-predictor/trunk/childheight.php#L149
- https://plugins.trac.wordpress.org/browser/child-height-predictor/tags/1.3/childheight.php#L149
- https://plugins.trac.wordpress.org/browser/child-height-predictor/trunk/childheight.php#L135
- https://plugins.trac.wordpress.org/browser/child-height-predictor/tags/1.3/childheight.php#L135