Unrestricted Upload Vulnerability in 299Ko CMS File Management Component
CVE-2025-8265

5.1MEDIUM

Key Information:

Vendor

299ko

Status
Cms
Vendor
CVE Published:
28 July 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-8265?

A vulnerability exists in the File Management component of 299Ko CMS 2.0.0, allowing unauthorized users to upload files without restriction. This situation presents significant security risks, as it may lead to the execution of malicious code on the server. Remote attackers can exploit this vulnerability to compromise the system, as the attack vector is accessible without prior authentication. The vendor has been notified, but no response has been recorded to address this critical issue.

Affected Version(s)

CMS 2.0.0

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-2025-8265 - Proof of Concept

References

https://vuldb.com/?id.317853
vdb-entry
https://vuldb.com/?ctiid.317853
signaturepermissions-required
https://vuldb.com/?submit.617651
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
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

Neverlandre (VulDB User)
.
CVE-2025-8265 : Unrestricted Upload Vulnerability in 299Ko CMS File Management Component