CVE-2024-47823
Livewire is a full-stack framework for Laravel that allows for dynamic UI components without leaving PHP.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.85%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 7.7 HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.85% probability · 56th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-434
- Affected
- laravel/livewire
- Source
- security-advisories@github.com
References
- https://github.com/livewire/livewire/commit/70503b79f5db75a1eac9bf55826038a6ee5a16d5Patch
- https://github.com/livewire/livewire/commit/cd168c6212ea13d13b82b3132485741f82d9fad9Patch
- https://github.com/livewire/livewire/pull/8624Issue Tracking, Patch
- https://github.com/livewire/livewire/security/advisories/GHSA-f3cx-396f-7jqpExploit, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.