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OpenAdvisories
Medium · 6.4 CVE-2021-47919 EUVD-2021-34752GHSA-p3gm-qv6r-wh7x

Simple CMS 2.1 Non-Persistent Cross-Site Scripting via Preview Parameter

Published Feb 1, 2026 · Updated Mar 5, 2026 · Assigned by VulnCheck

Description

Simple CMS 2.1 contains a non-persistent cross-site scripting vulnerability in the preview.php file's id parameter. Attackers can inject malicious script code through a GET request to execute arbitrary scripts and potentially hijack user sessions or perform phishing attacks.

Affected products

VendorProductAffectedFixed
Simplephpscripts Simple CMS 2.1 —

References