Livewire Remote Code Execution on File Uploads
In livewire/livewire prior to v2.12.7 and v3.5.2, the file extension of an uploaded file is guessed based on the MIME type. As a result, the actual file extension from the file name is not validated. An attacker can therefore bypass the validation by uploading a file with a valid MIME type (e.g., image/png) and a “.php” file extension.
If the following criteria are met, the attacker can carry out an RCE attack:
- Filename is composed of the original file name using
$file->getClientOriginalName() - Files stored directly on your server in a public storage disk
- Webserver is configured to execute “.php” files
PoC
In the following scenario, an attacker could upload a file called shell.php with an image/png MIME type and execute it on the remote server.
class SomeComponent extends Component
{
use WithFileUploads;
#[Validate('image|extensions:png')]
public $file;
public function save()
{
$this->validate();
$this->file->storeAs(
path: 'images',
name: $this->file->getClientOriginalName(),
options: ['disk' => 'public'],
);
}
}Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | livewire/livewire | >= 3.0.0-beta.1, < 3.5.2, < 2.12.7 | 3.5.2, 2.12.7 |
References
- https://github.com/livewire/livewire/security/advisories/GHSA-f3cx-396f-7jqp
- https://nvd.nist.gov/vuln/detail/CVE-2024-47823
- https://github.com/livewire/livewire/pull/8624
- https://github.com/livewire/livewire/commit/70503b79f5db75a1eac9bf55826038a6ee5a16d5
- https://github.com/livewire/livewire/commit/cd168c6212ea13d13b82b3132485741f82d9fad9
- https://github.com/livewire/livewire
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-20, CWE-434- Platform
- Composer
- Package
livewire/livewire- Disclosed
- 08.10.2024
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-f3cx-396f-7jqp - CC BY 4.0
Vulnerability history: livewire/livewire
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 03.2024 09.2026
- Without a fix
- 0
- Exploited in attacks
- 1
Severity breakdown
- Critical 1
- High 1
- Medium 3
Disclosures per year
- 2024: 3
- 2025: 1
- 2026: 1
-
Livewire Remote Code Execution on File Uploads this entry
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