Cross-Site Request Forgery in Redaxo CMS 5.2 by Redaxo
CVE-2016-20053

6.9MEDIUM

Key Information:

Vendor

Redaxo

Status
Redaxo Cms
Vendor
CVE Published:
4 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-20053?

Redaxo CMS 5.2 exhibits a cross-site request forgery vulnerability that can be exploited by unauthenticated attackers to create administrative accounts. By deceiving authenticated administrators into visiting specially crafted malicious web pages, attackers can manipulate the users' endpoint. They can inject HTML forms containing hidden fields that specify admin credentials and account parameters, enabling the unauthorized addition of new administrator accounts without the knowledge or consent of the actual users.

Affected Version(s)

Redaxo CMS 5.2

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-2016-20053 - Proof of Concept

References

https://www.exploit-db.com/exploits/40708
exploit
https://www.vulncheck.com/advisories/redaxo-cms-cross-sit...
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
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

Ashiyane Digital Security Team
.