Improper Neutralization of HTTP Host Header Handling in Hush Framework by jameschz
CVE-2025-13434

6.9MEDIUM

Key Information:

Vendor

Jameschz

Status
Hush Framework
Vendor
CVE Published:
20 November 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-13434?

A vulnerability exists in version 2.0 of the Hush Framework by jameschz, specifically within the HTTP Host Header handling in the Util.php file. This vulnerability arises from the improper neutralization of the $_SERVER['HOST'] argument, which can allow attackers to exploit scripting syntax through malformed HTTP headers. Remote exploitation is feasible, and public exploits are available. Despite prior disclosure attempts to the vendor, no response has been received, leaving systems using this framework vulnerable to potential attacks.

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Affected Version(s)

Hush Framework 2.0

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-2025-13434 - Proof of Concept

References

https://vuldb.com/?id.332978
vdb-entrytechnical-description
https://vuldb.com/?ctiid.332978
signaturepermissions-required
https://vuldb.com/?submit.687568
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

lakshay12311 (VulDB User)
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