CVE-2021-47919

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

Published Feb 1, 2026 CVSS 4.0 · 5.1 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Simple-cms Project
Simple-cms Project simple Cms
CPEs cpe:2.3:a:simple-cms_project:simple_cms:2.1:*:*:*:*:*:*:*
Vendors & Products Simple-cms Project
Simple-cms Project simple Cms
Type Values Removed Values Added
First Time appeared Simplephpscripts simple Cms Php
CPEs cpe:2.3:a:simplephpscripts:simple_cms_php:2.1:*:*:*:*:*:*:*
Vendors & Products Simplephpscripts simple Cms Php
Type Values Removed Values Added
First Time appeared Simplephpscripts
Simplephpscripts simple Cms
Vendors & Products Simplephpscripts
Simplephpscripts simple Cms
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Simple CMS 2.1 Non-Persistent Cross-Site Scripting via Preview Parameter
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

cvssV4_0

{'score': 5.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Mar 5, 2026, 1:29 AM
Reserved
Feb 1, 2026, 11:24 AM
Status
Analyzed
Published
Feb 1, 2026, 1:15 PM
Modified
Jun 17, 2026, 4:18 AM