Information disclosure in Rocketgenius Gravity Smtp

CVE-2026-4020

The Gravity SMTP plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.1.4. This is due to a REST API endpoint registered at /wp-json/gravitysmtp/v1/tests/mock-data with a permission_c…

Vulnerability class: Information Disclosure

EPSS: 0.129 (94.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-4020?
CVE-2026-4020 is a high-severity vulnerability in Rocketgenius Gravity Smtp, classified under Information Disclosure. CVSS score: 7.5/10. Published 2026-03-31.
How severe is CVE-2026-4020?
High severity. CVSS v3 base score is 7.5 out of 10.