What is CVE-2026-6400?

CVE-2026-6400 is a medium-severity vulnerability in Helpstring Child Height Predictor By Ostheimer, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-05-20.

How severe is CVE-2026-6400?

Medium severity. CVSS v3 base score is 4.3 out of 10.

CSRF in Helpstring Child Height Predictor By Ostheimer

CVE-2026-6400

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 set…

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.000 (7.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Helpstring Child Height Predictor By Ostheimer — versions 0

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

Frequently asked questions

What is CVE-2026-6400?: CVE-2026-6400 is a medium-severity vulnerability in Helpstring Child Height Predictor By Ostheimer, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2026-05-20.
How severe is CVE-2026-6400?: Medium severity. CVSS v3 base score is 4.3 out of 10.