High 8.1Published Feb 1, 2026

CVE-2021-47918Simple CMS 2.1 SQL Injection Vulnerability via Users Module

Updated under an hour ago (Oct 27, 2026, 10:30 PM ET)

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It affects Simplephpscripts Simple CMS and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for Simplephpscripts Simple CMS

Exploited in the last 30 days

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.

CVSS: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Mar 4, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Simplephpscripts Simple CMS simplephpscripts:simple_cms (from the name)	2.1	CNA record
simplephpscripts simple_cms_php simplephpscripts:simple_cms_php	2.1	NVD

References

References

https://www.vulnerability-lab.com/get_content.php?id=2303	exploit, third-party-advisory
https://simplephpscripts.com/simple-cms-php	product
https://www.vulncheck.com/advisories/simple-cms-sql-injection-vulnerability-via-users-module2	third-party-advisory, broken-link

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.