CVE-2021-47919

MEDIUM
2026-02-01 [email protected]
6.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:01 vuln.today
PoC Detected
Feb 11, 2026 - 19:30 vuln.today
Public exploit code
CVE Published
Feb 01, 2026 - 13:15 nvd
MEDIUM 6.4

Tags

PHP XSS Simple Cms Php

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.

Analysis

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 6.4 MEDIUM]

Technical Context

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Simple Cms Php. 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.

Affected Products

Vendor: Simplephpscripts. Product: Simple Cms Php. Versions: up to 2.1.

Remediation

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

Priority Score

52
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: +20

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CVE-2021-47919 vulnerability details – vuln.today
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