Arbitrary File Upload Affecting mckenziearts/livewire-markdown-editor package, versions <1.3
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- published5 May 2026
- disclosed4 May 2026
- creditUnknown
Introduced: 4 May 2026
New CVE NOT AVAILABLE CWE-434 (opens in a new tab)How to fix?
Upgrade mckenziearts/livewire-markdown-editor to version 1.3 or higher.
Overview
Affected versions of this package are vulnerable to Arbitrary File Upload via the updatedAttachments process. An attacker can upload arbitrary files by submitting crafted files through the upload interface, which may result in the execution of malicious scripts, phishing page hosting, or malware distribution when files are served from a public storage disk. This is only exploitable if the storage disk is publicly accessible and the upload UI is enabled.
Workaround
This vulnerability can be mitigated by disabling the upload UI on every instance of the editor by passing :show-upload="false".