Server-Side Request Forgery Vulnerability in cskefu by Unknown Vendor
CVE-2026-2556

5.3MEDIUM

Key Information:

Vendor

Unknown Vendor

Status
Cskefu
Vendor
CVE Published:
16 February 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-2556?

A security vulnerability has been identified in cskefu up to version 8.0.1, located in the MediaController.java file. This vulnerability permits an attacker to manipulate the URL argument, potentially leading to server-side request forgery. This type of attack could allow unauthorized access to internal resources by making requests that appear to originate from the server. Exploitation can be initiated remotely, raising significant security concerns. The vendor was notified prior to the public disclosure but failed to respond.

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Affected Version(s)

cskefu 8.0.0

cskefu 8.0.1

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-2026-2556 - Proof of Concept

References

https://vuldb.com/?id.346164
vdb-entrytechnical-description
https://vuldb.com/?ctiid.346164
signaturepermissions-required
https://vuldb.com/?submit.750708
third-party-advisory

CVSS V4

Score:
5.3
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

xcxr (VulDB User)
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