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Livewire versions 3.0.0-beta.1 to 3.6.3 are vulnerable to remote command execution due to improper handling of component property updates during hydration. The flaw occurs when maliciously crafted input is processed during the hydration phase of Livewire’s frontend-backend communication. Attackers can inject arbitrary PHP commands by manipulating serialized component properties, which are then deserialized and executed on the server. This vulnerability is exploitable without authentication when a vulnerable component is mounted, allowing attackers to bypass security controls and execute system commands.
DailyCVE Form:
Platform: Livewire
Version: 3.0.0-beta.1 – 3.6.3
Vulnerability: Remote Command Execution
Severity: Critical
Date: Jul 17, 2025
Prediction: Patch expected by Jul 24, 2025
What Undercode Say:
curl -X POST "target.com/livewire/update" --data "malicious_payload"
// Exploitable component property deserialization $hydratedValue = unserialize($input);
How Exploit:
- Craft malicious serialized payload
- Trigger component update via POST request
- Bypass authentication checks
Protection from this CVE:
- Upgrade to Livewire 3.6.4
- Disable vulnerable components
- Sanitize user inputs
Impact:
- Unauthenticated RCE
- Server compromise
- Data exfiltration
Sources:
Reported By:
Extra Source Hub:
Undercode
