Arbitrary Code Execution Vulnerability in Smush Plugin for WordPress
CVE-2026-19223
Currently unrated
Key Information:
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👾 Exploit Exists🟡 Public PoC
What is CVE-2026-19223?
The Smush plugin for WordPress, prior to version 4.3.2, is susceptible to a security flaw that enables an administrator of any individual site within a multisite network to execute arbitrary code across the entire network. This flaw arises from insufficient restrictions placed on network-wide settings, posing significant risks to the integrity and security of affected sites.
Affected Version(s)
Smush 3.22.1 < 4.3.2
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.