CVE-2026-112958
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
CVSS
5.4
Medio
EPSS
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KEV
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Exploit Today
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0-100
Publicado: 20 oct 2026 · Última mod.: 20 oct 2026 · CWE-79
Sin historial EPSS suficiente todavía.
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 style attribute and inject executable attributes when published content, or an affected draft viewed by a higher-privileged user, is rendered. This issue is fixed in version 4.34.0.
- github.comhttps://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498
- github.comhttps://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea
- github.comhttps://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.34.0
- github.comhttps://github.com/apostrophecms/apostrophe/security/advisories/GHSA-7jg5-frgc-c67w
- github.comhttps://github.com/apostrophecms/apostrophe/security/advisories/GHSA-7jg5-frgc-c67w