CVE-2021-47778

Unknown Unknown - Not Provided

PHP Code Injection in GetSimple CMS My SMTP Plugin Enables RCE

Publication date: 2026-01-21

Last updated on: 2026-03-06

Assigner: VulnCheck

Description

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 Scores

EPSS Scores

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Meta Information

Published

2026-01-21

Last Modified

2026-03-06

Generated

2026-07-06

AI Q&A

2026-01-21

EPSS Evaluated

2026-07-05

NVD

CVE-2021-47778

EUVD

EUVD-2026-3660

Affected Vendors & Products

Vendor	Product	Version / Range
get-simple	getsimplecms	1.1.2

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

Attack-Flow Graph

Executive Summary

CVE-2021-47778 is a PHP code injection vulnerability in GetSimple CMS My SMTP Contact Plugin version 1.1.2. It allows an authenticated administrator to inject arbitrary PHP code through the plugin's configuration parameters. This injection can lead to remote code execution on the server, meaning the attacker can run malicious code remotely with high privileges. [1]

Impact Analysis

This vulnerability can have severe impacts including remote code execution on the server hosting the GetSimple CMS. An attacker with administrator access can execute arbitrary PHP code, potentially compromising the confidentiality, integrity, and availability of the system. This could lead to unauthorized data access, data modification, service disruption, or full system compromise. [1]

Mitigation Strategies

To mitigate this vulnerability, ensure that only trusted administrators have access to the plugin configuration parameters, as the vulnerability requires authenticated administrator privileges. Consider updating or patching the GetSimple CMS My SMTP Contact Plugin to a version that addresses this PHP code injection vulnerability. If no patch is available, disable or remove the vulnerable plugin to prevent exploitation. [1]

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