Arbitrary File Upload Vulnerability in Redaxo CMS Mediapool Addon
CVE-2018-25353

8.7HIGH

Key Information:

Vendor

Redaxo

Status
Redaxo Cms Mediapool
Vendor
CVE Published:
23 May 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25353?

The Redaxo CMS Mediapool Addon version 5.5.1 and earlier is susceptible to an arbitrary file upload vulnerability. This issue allows authenticated users with editor privileges to bypass file extension restrictions, enabling the upload of potentially malicious executable files utilizing obfuscated extensions, such as php71 or php53. Attackers leveraging this vulnerability can execute arbitrary code on the server, leading to unauthorized access and potential data compromise.

Affected Version(s)

Redaxo CMS Mediapool 0 <= 5.5.1

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-2018-25353 - Proof of Concept

References

https://www.exploit-db.com/exploits/44891
exploit
https://redaxo.org
product
https://redaxo.org/download/redaxo/5.5.1.zip
product

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

mn@HackerWerkstatt
.