Skip to content
OpenAdvisories
Medium · 6.1 CVE-2021-34658 EUVD-2021-21308GHSA-3ffg-w27c-62q6

Simple Popup Newsletter <= 1.4.7 Reflected Cross-Site Scripting

Published Aug 16, 2021 · Updated May 23, 2025 · Assigned by Wordfence

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.

Affected products

VendorProductAffectedFixed
Simple Popup Newsletter Simple Popup Newsletter 1.4.7 – ≤ 1.4.7 —

References