Remote SQL Injection Vulnerability in Simple CMS by Simple PHP Scripts
CVE-2021-47918

8.6HIGH

Key Information:

Vendor

SimplePHPscripts

Status
Simple Cms
Vendor
CVE Published:
1 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47918?

Simple CMS 2.1 is vulnerable to a remote SQL injection that enables attackers with administrative privileges to execute arbitrary SQL commands. This vulnerability stems from inadequate input validation in the admin.php file, specifically in the users module. By exploiting this flaw, a malicious actor can gain unauthorized access to the database management system, leading to potential data breaches or manipulation of records.

Affected Version(s)

Simple CMS 2.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47918 - Proof of Concept

References

https://www.vulnerability-lab.com/get_content.php?id=2303
exploit
https://simplephpscripts.com/simple-cms-php
product
https://www.vulncheck.com/advisories/simple-cms-sql-injec...
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Vulnerability-Lab [Research Team]
.