CVE Catalog

CVE-2026-8151

MediumCVSS 5.4
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.10%

1th percentile - higher than 1% of all known CVEs

Summary

The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 lacks CSRF checks in its settings page, allowing attackers to trick a logged-in administrator into changing the configured third-party API key. Once replaced, all subsequent member registration data (name, email, membership level) is sent to the attacker-controlled account.

Risk Assessment

An attacker can intercept user registration data, compromising the confidentiality of personal information and potentially leading to identity theft or other abuses.

Recommendation

Update the plugin to version 1.9.8 or later. Additionally, consider implementing extra protections such as CAPTCHA or additional verification for settings changes.

Related vulnerabilities

Original NVD description (English source)

The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 does not have CSRF checks in its settings page, allowing attackers to trick a logged-in administrator into changing the configured third-party API key. Once replaced, all subsequent member registration data (name, email, membership level) is sent to the attacker-controlled account.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS