GHSA-gxxh-8vcj-w2mh: livewire-markdown-editor has arbitrary file upload that allows stored XSS via attachment handler

high Affects mckenziearts/livewire-markdown-editor. Feed 2026.10.29.1, updated 2026-10-28; published 2026-05-04; advisory modified 2026-05-05.

livewire-markdown-editor has arbitrary file upload that allows stored XSS via attachment handler

Package: mckenziearts/livewire-markdown-editor Composer
Affected versions: <1.3
Fixed in: 1.3
Severity: high CVSS 7.1
Exploitation: not on CISA KEV
Published: 2026-05-04
Source: osv.dev

References

CWE-434 CWE-79

NVD record mckenziearts/livewire-markdown-editor advisories

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