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Case File

CVE-2021-34658

MEDIUM · CVSS 6.1 EPSS 0.90%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-08-16 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

CVE
CVE-2021-34658
Severity
MEDIUM
CVSS
6.1
EPSS
0.90%
WordPress

Original NVD 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.