CVE-2026-113657
Description
ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. From sanitize-html 2.17.7 until 2.18.0, an application configuration that permits namespace-prefixed SVG animation elements and the relevant URL-targeting attributes can bypass the SMIL URL protection because prefixed tag names do not match the unprefixed animation-element check. The bypass can rewrite a link destination to an unsafe URI after the sanitized SVG is rendered, with script execution occurring when a user activates the affected link; the default sanitizer configuration is not unconditionally affected. This issue is fixed in sanitize-html 2.18.0.
How to fix
- sanitize-html2.18.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| sanitize-htmlnpm | 2.17.7 ≤ v < 2.18.0 | 2.18.0 |
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