CVE-2026-81887: Livewire DOM-based cross-site scripting during client-side state handling

medium Affects livewire/livewire. Feed 2026.10.29.4, updated 2026-10-29; published 2026-09-02.

Livewire DOM-based cross-site scripting during client-side state handling

Package: livewire/livewire Composer
Affected versions: >=3.0.0-beta.1 and <3.8.3 or >=4.0.0-beta.1 and <4.3.4
Fixed in: 3.8.3, 4.3.4
Severity: medium
Exploitation: not on CISA KEV · EPSS 1% (52.4th percentile)
Published: 2026-09-02
Source: osv.dev

References

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