CVE-2026-27902
Fixed upstream EPSS <1%CVSS 5.3
Svelte performance oriented web framework. Prior to version 5.53.5, errors from `transformError` were not correctly escaped prior to being embedded in the HTML output, causing potential HTML injection and XSS if attacker-controlled content is returned from `transformError`. Version 5.53.5 fixes the issue.
Products: sveltejs svelte
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| npm | svelte | 5.53.5 |