The Zend Engine V3.4.0 exploit involves a use-after-free vulnerability, which occurs when the engine attempts to access memory that has already been freed. This can lead to a crash or, in the case of a skilled attacker, the execution of arbitrary code. The vulnerability is caused by a flawed handling of PHP objects, specifically in the way the engine manages object properties.
from the community. This means it no longer receives official security patches from the PHP Group. zend engine v3.4.0 exploit
When security researchers target the Zend Engine, they aren't looking for SQLi or XSS. They are looking for and heap corruption . ZE v3.4.0, while more secure than its predecessors, introduced a specific set of exploitable quirks. The Zend Engine V3
The attacker sends a POST request with a shell script. The Zend Engine processes this as part of the initial request, granting the attacker a Remote Shell . Why This Version is Unique from the community