Network-wide Access Setting Vulnerability in Smush WordPress Plugin
CVE-2026-110039
2.7LOW
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
What is CVE-2026-110039?
The Smush plugin for WordPress, prior to version 4.3.4, has an access control vulnerability that permits individual site administrators within a multisite network to modify settings that should be restricted to network administrators. This misuse of access permissions could potentially lead to unauthorized configuration changes across the entire network, compromising its integrity.
Affected Version(s)
Smush 0 < 4.3.4
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.
References
CVSS V3.1
Score:
2.7
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
Erwan LR (WPScan)
WPScan