CVE-2021-47919

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.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.1 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://simplephpscripts.com/simple-cms-php	Product
https://www.vulncheck.com/advisories/simple-cms-non-persistent-cross-site-scripting-via-preview-parameter	Third Party Advisory
https://www.vulnerability-lab.com/get_content.php?id=2301	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:simplephpscripts:simple_cms_php:2.1:*:*:*:*:*:*:*

History

11 Feb 2026, 19:30

Type	Values Removed	Values Added
First Time		Simplephpscripts simple Cms Php Simplephpscripts
CPE		cpe:2.3:a:simplephpscripts:simple_cms_php:2.1:::::::*
References	~~() https://simplephpscripts.com/simple-cms-php -~~	() https://simplephpscripts.com/simple-cms-php - Product
References	~~() https://www.vulncheck.com/advisories/simple-cms-non-persistent-cross-site-scripting-via-preview-parameter -~~	() https://www.vulncheck.com/advisories/simple-cms-non-persistent-cross-site-scripting-via-preview-parameter - Third Party Advisory
References	~~() https://www.vulnerability-lab.com/get_content.php?id=2301 -~~	() https://www.vulnerability-lab.com/get_content.php?id=2301 - Exploit, Third Party Advisory

01 Feb 2026, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-01 13:15

Updated : 2026-02-11 19:30

NVD link : CVE-2021-47919

Mitre link : CVE-2021-47919

CVE.ORG link : CVE-2021-47919

JSON object : View

Products Affected

simplephpscripts

simple_cms_php

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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