Cross-Site Request Forgery Vulnerability in GetSimple CMS My SMTP Contact Plugin
CVE-2021-47830

5.1MEDIUM

Key Information:

Vendor

Getsimple Cms

Status
My Smtp Contact Plugin
Vendor
CVE Published:
21 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47830?

The My SMTP Contact Plugin for GetSimple CMS version 1.1.1 is susceptible to a cross-site request forgery (CSRF) vulnerability. This flaw enables attackers to create a malicious webpage that, when accessed by an authenticated administrator, can lead to unauthorized modifications of SMTP configuration settings. While this vulnerability does not directly allow for remote code execution, it poses a significant risk by allowing unauthorized changes to crucial email sending configurations, potentially compromising the security of communications sent through the plugin.

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Deploy the Patch

Affected Version(s)

My SMTP Contact Plugin 1.1.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-47830 - Proof of Concept

References

https://www.exploit-db.com/exploits/49774
exploit
https://www.exploit-db.com/exploits/49798
exploit
http://get-simple.info
product

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Bobby Cooke (boku)
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