CVE-2021-47778

GetSimple CMS My SMTP Contact Plugin 1.1.2 contains a PHP code injection vulnerability. An authenticated administrator can inject arbitrary PHP code through plugin configuration parameters, leading to remote code execution on the server.

CVSS v3 7.2 HIGH

7.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.2 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
http://get-simple.info	Product
https://github.com/GetSimpleCMS/GetSimpleCMS	Product
https://github.com/boku7/gsSMTP-Csrf2Xss2RCE/	Exploit Third Party Advisory
https://www.exploit-db.com/exploits/49774	Exploit Third Party Advisory VDB Entry
https://www.vulncheck.com/advisories/getsimple-cms-my-smtp-contact-plugin-php-code-injection	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:get-simple:getsimplecms:1.1.2:*:*:*:*:*:*:*

History

06 Mar 2026, 20:15

Type	Values Removed	Values Added
References	~~() http://get-simple.info -~~	() http://get-simple.info - Product
References	~~() https://github.com/GetSimpleCMS/GetSimpleCMS -~~	() https://github.com/GetSimpleCMS/GetSimpleCMS - Product
References	~~() https://github.com/boku7/gsSMTP-Csrf2Xss2RCE/ -~~	() https://github.com/boku7/gsSMTP-Csrf2Xss2RCE/ - Exploit, Third Party Advisory
References	~~() https://www.exploit-db.com/exploits/49774 -~~	() https://www.exploit-db.com/exploits/49774 - Exploit, Third Party Advisory, VDB Entry
References	~~() https://www.vulncheck.com/advisories/getsimple-cms-my-smtp-contact-plugin-php-code-injection -~~	() https://www.vulncheck.com/advisories/getsimple-cms-my-smtp-contact-plugin-php-code-injection - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.2
First Time		Get-simple Get-simple getsimplecms
CPE		cpe:2.3:a:get-simple:getsimplecms:1.1.2:::::::*

21 Jan 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-21 18:16

Updated : 2026-03-06 20:15

NVD link : CVE-2021-47778

Mitre link : CVE-2021-47778

CVE.ORG link : CVE-2021-47778

JSON object : View

Products Affected

get-simple

getsimplecms

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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