Persistent Cross-Site Scripting in PHPFusion by PHPFusion
CVE-2020-36996

5.1MEDIUM

Key Information:

Vendor

PHP-fusion

Status
PHPfusion
Vendor
CVE Published:
30 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2020-36996?

A persistent cross-site scripting vulnerability exists in PHPFusion 9.03.50, specifically in the print.php page. This vulnerability allows attackers to exploit insufficient input sanitization, enabling them to inject malicious JavaScript code through user-submitted forum messages. When the print page is accessed, the injected script executes in the browsers of victims, potentially compromising their security and privacy.

Affected Version(s)

PHPFusion 0 <= 9.03.50

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-2020-36996 - Proof of Concept

References

https://www.exploit-db.com/exploits/48497
exploit
https://www.php-fusion.co.uk/home.php
product
https://www.php-fusion.co.uk/php_fusion_9_downloads.php
product

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

coiffeur
.