CVE-2026-112958

The ApostropheCMS Node.js content management system is vulnerable to Stored XSS in versions prior to 4.34.0 . The root cause is a lack of HTML-attribute encoding within the wrapper serializer for project-defined free-form widget style fields. An editor can inject an unescaped quote into an inline...

CVE-2026-112958 ApostropheCMS: Stored XSS via Unescaped Widget Style Attribute Serialization

ApostropheCMS is an open-source Node.js content management system. Prior to 4.34.0, a project-defined free-form widget style field can carry an editor-controlled quote into an inline style attribute because the wrapper serializer does not apply HTML-attribute encoding. The quote can terminate the...

CVE-2026-112958 ApostropheCMS: Stored XSS via Unescaped Widget Style Attribute Serialization

ApostropheCMS is an open-source Node.js content management system. Prior to 4.34.0, a project-defined free-form widget style field can carry an editor-controlled quote into an inline style attribute because the wrapper serializer does not apply HTML-attribute encoding. The quote can terminate the...