CVE-2021-29400: Netexplorer My Smtp Contact

Medium severity, CVSS 6.5. EPSS: 0.6% chance of exploitation in the next 30 days.

A cross-site request forgery (CSRF) vulnerability in the My SMTP Contact v1.1.1 plugin for GetSimple CMS allows remote attackers to change the SMTP settings of the contact forms for the webpages of the CMS after an authenticated admin visits a malicious third-party site.

Affected products

• Netexplorer My Smtp Contact: version 1.1.1 only

Published 2021-08-10. Last modified 2026-06-17.