CVE-2026-53606 sanitize-html has an incomplete URI scheme validation that allows javascript: URIs through action, formaction, data, poster, and background attributes

ApostropheCMS is an open-source Node.js content management system, and sanitize-html provides a simple HTML sanitizer with a clear API. Versions of sanitize-html prior to 2.17.5 use allowedSchemesAppliedToAttributes default: 'href', 'src', 'cite' to gate the naughtyHref function that blocks...