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CVE-2026-27902

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CVE-2026-27902

Published: Feb 26, 2026

Modified: Feb 26, 2026

PUBLISHED

Description

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.

VendorProductVersions

sveltejs

svelte

affected
>= 5.53.0, < 5.53.5

Weaknesses (CWE)

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