CVE-2021-47917

MEDIUM

6.4

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.

CVE Details

CVSS v3.1 Score6.4

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/1/2026

Last Modified2/11/2026

Sourcenvd

Honeypot Sightings0

Affected Products

simplephpscripts:simple_cms_php

Weaknesses (CWE)

CWE-79

References

https://simplephpscripts.com/simple-cms-php(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/simple-cms-persistent-cross-site-scripting-via-user-input-parameters(disclosure@vulncheck.com)

https://www.vulnerability-lab.com/get_content.php?id=2302(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.