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.

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Workaround

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History

Wed, 11 Feb 2026 19:45:00 +0000

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

Tue, 03 Feb 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Simplephpscripts
Simplephpscripts simple Cms
Vendors & Products Simplephpscripts
Simplephpscripts simple Cms

Mon, 02 Feb 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Sun, 01 Feb 2026 12:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Simple CMS 2.1 Persistent Cross-Site Scripting via User Input Parameters
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'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-02-02T18:05:53.672Z

Reserved: 2026-02-01T11:24:18.714Z

Link: CVE-2021-47917

cve-icon Vulnrichment

Updated: 2026-02-02T18:05:50.300Z

cve-icon NVD

Status : Analyzed

Published: 2026-02-01T13:15:56.073

Modified: 2026-02-11T19:30:18.937

Link: CVE-2021-47917

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-02-02T09:26:17Z

Weaknesses