---
title: "GHSA-f4fj-q6m4-cc52: ZendFramework vulnerable to XXE/XEE attacks"
url: https://erroneo.us/security/ghsa/GHSA-f4fj-q6m4-cc52/
description: "GHSA-f4fj-q6m4-cc52 (critical, Composer (PHP)): ZendFramework vulnerable to XXE/XEE attacks. Numerous components utilizing PHP's DOMDocument, SimpleXML, and…"
type: advisory
section: "Security Digest"
date_published: 2024-06-07
date_modified: 2024-06-07
publisher: erroneo.us
author: erroneo.us Security Desk
ghsa: "GHSA-f4fj-q6m4-cc52"
license: All rights reserved. Quote with attribution and a link.
---

# GHSA-f4fj-q6m4-cc52: ZendFramework vulnerable to XXE/XEE attacks

## Affected packages

- Composer (PHP) `zendframework/zend-xmlrpc` >= 2.1.0, < 2.1.6 → fixed: 2.1.6
- Composer (PHP) `zendframework/zend-xmlrpc` >= 2.2.0, < 2.2.6 → fixed: 2.2.6

## Details

Numerous components utilizing PHP's DOMDocument, SimpleXML, and xmlparse functionality are vulnerable to two types of attacks: - XML eXternal Entity (XXE) Injection attacks. The above mentioned extensions are insecure by default, allowing external entities to be specified by adding a specific DOCTYPE element to XML documents and strings. By exploiting this vulnerability an application may be coerced to open arbitrary files and/or TCP connections. - XML Entity Expansion (XEE) vectors, leading to Denial of Service vectors. XEE attacks occur when the XML DOCTYPE declaration includes XML entity definitions that contain either recursive or circular references; this leads to CPU and memory consumption, making Denial of Service exploits trivial to implement.

## Sources

- [GitHub Advisory GHSA-f4fj-q6m4-cc52](https://github.com/advisories/GHSA-f4fj-q6m4-cc52)
- [github.com](https://github.com/zendframework/zend-xmlrpc/commit/0ee07bc62e32ddde2680a48fe13fd58c28a208aa)
- [github.com](https://github.com/zendframework/zend-xmlrpc/commit/204ccbee883487e4873bce89278c48e370c21a63)
- [github.com](https://github.com/zendframework/zend-xmlrpc/commit/27201f2c48acb3ab6135e8772211d9cb707693d6)
- [github.com](https://github.com/zendframework/zend-xmlrpc/commit/48f20929f93df4a79254c85155aaebbbe330dc93)
- [github.com](https://github.com/zendframework/zend-xmlrpc/commit/7a42486b63797a37af5c26be1bd3d4fb235a5939)
- [github.com](https://github.com/zendframework/zend-xmlrpc/commit/93376258630eab4823cd5009a7230e17073feed8)
- [framework.zend.com](https://framework.zend.com/security/advisory/ZF2014-01)
- [github.com](https://github.com/FriendsOfPHP/security-advisories/blob/master/zendframework/zend-xmlrpc/ZF2014-01.yaml)

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Source page: https://erroneo.us/security/ghsa/GHSA-f4fj-q6m4-cc52/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt