/Vulnerability Library

Gravity SMTP WordPress Plugin - Sensitive Information Exposure

CVE-2026-4020
Verified

Description

Gravity SMTP WordPress plugin <= 2.1.4 contains a sensitive information exposure caused by an unrestricted REST API endpoint at /wp-json/gravitysmtp/v1/tests/mock-data, letting unauthenticated attackers retrieve detailed system configuration data, exploit requires no authentication.

Severity

High

CVSS Score

7.5

Exploit Probability

2%

Affected Product

gravitysmtp

Published Date

March 31, 2026

Template Author

theamanrawat

CVE-2026-4020.yaml
7.5Score

CVSS Metrics

CVSS Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE ID:
cve-2026-4020
CWE ID:
cwe-200

References

https://patchstack.com/database/vulnerability/wordpress-gravity-smtp-plugin-2-1-4-unauthenticated-sensitive-information-exposure-via-rest-api-vulnerabilityhttps://www.wordfence.com/threat-intel/vulnerabilities/id/12a296db-ecc0-409b-8718-0c208504053a?source=cvehttps://nvd.nist.gov/vuln/detail/CVE-2026-4020

Remediation Steps

Update to the latest version beyond 2.1.4.