Cloudanix VulnDB

CVE-2026-63670

Medium · 6.1

CVSS

6.1

EPSS

0.3%

Published

Aug 17, 2026

CISA due date

—

The record

ApostropheCMS is an open-source Node.js content management system. Prior to 2.17.6, sanitizeHtml() can pass disallowed executable markup through packages/sanitize-html/index.js when textarea or xmp is included in allowedTags because a literal solidus after the raw-text end-tag name is treated as text by htmlparser2 and the ontext handler emits that content without escaping, while a browser parses the following img onerror markup as active HTML. This issue is fixed in version 2.17.6.

Affected packages

Ecosystem Package Introduced Fixed

Related vulnerabilities