CVE-2014-1439: Hiphop Virtual Machine For PHP Project Hiphop Virtual Machine For PHP

Medium severity, CVSS 5.0. EPSS: 1.5% chance of exploitation in the next 30 days.

The libxml_disable_entity_loader function in runtime/ext/ext_simplexml.cpp in HipHop Virtual Machine for PHP (HHVM) before 2.4.0 and 2.3.x before 2.3.3 does not properly disable a certain libxml handler, which allows remote attackers to conduct XML External Entity (XXE) attacks.

Affected products

• Hiphop Virtual Machine For PHP Project Hiphop Virtual Machine For PHP: up to and including 2.3.2; version 2.0.0 only; version 2.0.1 only; version 2.0.2 only; version 2.1.0 only; version 2.2.0 only; …

Published 2014-02-05. Last modified 2026-06-17.