Security Advisory

CVE-2021-34658

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2021-08-16 18:22:38

Last updated 2025-05-23 20:02:51

Assigner Wordfence

State PUBLISHED

Description

The Simple Popup Newsletter WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of $_SERVER[PHP_SELF] in the ~/simple-popup-newsletter.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.4.7.

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