CVE-2021-47917

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47917
Simple CMS 2.1 contains a persistent cross-site scripting vulnerability in user input parameters that allows remote attackers to inject malicious script code. Attackers can exploit the newUser and editUser modules to inject persistent scripts that execute on user list preview, potentially leading to session hijacking and application manipulation.

6.4 /10

CVSS v3 : MEDIUM

V3 Legend

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-persistent-cross-site-scripting-via-user-input-parameters Third Party Advisory
https://www.vulnerability-lab.com/get_content.php?id=2302 Exploit Third Party Advisory
Configurations

Configuration 1 (hide)

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

17 Jun 2026, 04:18

Type Values Removed Values Added
Summary
  • (es) Simple CMS 2.1 contiene una vulnerabilidad persistente de cross-site scripting en los parámetros de entrada de usuario que permite a atacantes remotos inyectar código de script malicioso. Los atacantes pueden explotar los módulos newUser y editUser para inyectar scripts persistentes que se ejecutan en la vista previa de la lista de usuarios, lo que podría llevar al secuestro de sesión y a la manipulación de la aplicación.

11 Feb 2026, 19:30

Type Values Removed Values Added
First Time Simplephpscripts simple Cms Php
Simplephpscripts
References () https://simplephpscripts.com/simple-cms-php - () https://simplephpscripts.com/simple-cms-php - Product
References () https://www.vulncheck.com/advisories/simple-cms-persistent-cross-site-scripting-via-user-input-parameters - () https://www.vulncheck.com/advisories/simple-cms-persistent-cross-site-scripting-via-user-input-parameters - Third Party Advisory
References () https://www.vulnerability-lab.com/get_content.php?id=2302 - () https://www.vulnerability-lab.com/get_content.php?id=2302 - Exploit, Third Party Advisory
CPE cpe:2.3:a:simplephpscripts:simple_cms_php:2.1:*:*:*:*:*:*:*

01 Feb 2026, 13:15

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-01 13:15

Updated : 2026-06-17 04:18

NVD link : CVE-2021-47917

Mitre link : CVE-2021-47917

CVE.ORG link : CVE-2021-47917

JSON object : View

Products Affected

simplephpscripts

  • simple_cms_php
CWE
CWE-79

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