Unrestricted File Upload Vulnerability in Themefic Instantio
CVE-2025-47550

7.2HIGH

Key Information:

Vendor

WordPress
Status
Instantio
Vendor
CVE Published:
7 May 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-47550?

The Themefic Instantio plugin is susceptible to an unrestricted file upload vulnerability, allowing attackers to upload malicious files, such as web shells, directly to the web server. This can lead to unauthorized access and potential control over the server environment. This issue impacts all versions of Instantio up to and including version 3.3.16, emphasizing the need for prompt remediation to safeguard against exploitation.

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Affected Version(s)

Instantio <= 3.3.16

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-2025-47550 - Proof of Concept

CVE-2025-47550 - Proof of Concept

CVE-2025-47550
Created by d0n601

References

https://patchstack.com/database/wordpress/plugin/instanti...
vdb-entry
https://ryankozak.com/posts/cve-2025-47550/
third-party-advisoryexploittechnical-description
https://github.com/d0n601/CVE-2025-47550/
third-party-advisoryexploittechnical-description

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ryan Kozak (Patchstack Alliance)
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