CVE-2021-47918 Simple CMS 2.1 SQL Injection Vulnerability via Users Module
Privileged attackers can inject SQL commands via the users module in Simple CMS to compromise the database and web application.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-47918?
CVE-2021-47918 is a high-severity SQL injection vulnerability in Simplephpscripts Simple CMS, published on 1 Feb 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Simple CMS 2.1 contains a remote SQL injection vulnerability that allows privileged attackers to inject unfiltered SQL commands in the users module. Attackers can exploit unvalidated input parameters in the admin.php file to compromise the database management system and web application.
Weakness: CWE-89
Which versions are affected by CVE-2021-47918?
It affects 1 product.
Products include Simplephpscripts Simple Cms Php.
How do I fix CVE-2021-47918?
No fix has been published for CVE-2021-47918 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2021-47918 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-47918 exists.
Other vulnerabilities in Simplephpscripts Simple CMS
Sources
Also known as GHSA-h64m-fxq4-m43w.