XML External Entity Bypass in Zend Framework by Zend Technologies
CVE-2015-5161

Currently unrated

Key Information:

Vendor: Zend
Status: Zend Framework
Vendor: CVE Published:; 25 August 2015

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 32%

What is CVE-2015-5161?

The vulnerability in Zend Framework allows remote attackers to exploit XML external entity injection (XXE) by bypassing security checks in the XML processing. Specifically, when the Zend_Xml_Security::scan function is executed in a PHP-FPM environment with threading, it can be manipulated using multibyte encoded characters to conduct unauthorized actions or access sensitive data due to improper handling of XML entities. This flaw is critical for applications that utilize XML processing without adequate security measures.

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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-2015-5161 - Proof of Concept