Local Privilege Escalation in Laravel Valet by Laravel
CVE-2021-47756

8.4HIGH

Key Information:

Vendor

Laravel

Status
Laravel Valet
Vendor
CVE Published:
15 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-47756?

Laravel Valet versions 1.1.4 to 2.0.3 are susceptible to a local privilege escalation vulnerability. This flaw allows attackers to manipulate the symlinked valet command, enabling them to execute arbitrary code with root privileges without requiring further authentication. Such unauthorized access can lead to significant security risks, making it essential for users to update to patched versions to mitigate potential exploits.

Affected Version(s)

Laravel Valet 1.1.4 to 2.0.3

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.

CVE-2021-47756 - Proof of Concept

References

https://www.exploit-db.com/exploits/50591
exploit
https://laravel.com/docs/8.x/valet
product
https://www.vulncheck.com/advisories/laravel-valet-local-...
third-party-advisory

CVSS V4

Score:
8.4
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

leonjza
JSON
.