CVE-2021-47918

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

S

imple 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.

References

Link	Resource
https://simplephpscripts.com/simple-cms-php	Product
https://www.vulncheck.com/advisories/simple-cms-sql-injection-vulnerability-via-users-module2	Broken Link
https://www.vulnerability-lab.com/get_content.php?id=2303	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:simplephpscripts:simple_cms_php:2.1:*:*:*:*:*:*:*

History

11 Feb 2026, 19:30

Type	Values Removed	Values Added
First Time		Simplephpscripts simple Cms Php Simplephpscripts
CPE		cpe:2.3:a:simplephpscripts:simple_cms_php:2.1:::::::*
References	~~() https://simplephpscripts.com/simple-cms-php -~~	() https://simplephpscripts.com/simple-cms-php - Product
References	~~() https://www.vulncheck.com/advisories/simple-cms-sql-injection-vulnerability-via-users-module2 -~~	() https://www.vulncheck.com/advisories/simple-cms-sql-injection-vulnerability-via-users-module2 - Broken Link
References	~~() https://www.vulnerability-lab.com/get_content.php?id=2303 -~~	() https://www.vulnerability-lab.com/get_content.php?id=2303 - Exploit, Third Party Advisory

01 Feb 2026, 13:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-02-01 13:15

Updated : 2026-02-11 19:30

NVD link : CVE-2021-47918

Mitre link : CVE-2021-47918

CVE.ORG link : CVE-2021-47918

JSON object : View

Products Affected

simplephpscripts

simple_cms_php

CWE

CWE-89

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

{"id": "CVE-2021-47918", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}, {"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 8.6, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-02-01T13:15:56.237", "references": [{"url": "https://simplephpscripts.com/simple-cms-php", "tags": ["Product"], "source": "[email protected]"}, {"url": "https://www.vulncheck.com/advisories/simple-cms-sql-injection-vulnerability-via-users-module2", "tags": ["Broken Link"], "source": "[email protected]"}, {"url": "https://www.vulnerability-lab.com/get_content.php?id=2303", "tags": ["Exploit", "Third Party Advisory"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-89"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-02-11T19:30:38.643", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:simplephpscripts:simple_cms_php:2.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "925E5BAC-82FC-4543-8CF8-158ACD5D78AC"}], "operator": "OR"}]}], "sourceIdentifier": "[email protected]"}