MEDIUM 5.4 NVD
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 an editor-controlle
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.
References
- https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf49
- https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5e
- https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.34.0
- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-7jg5-frgc-c67w
- https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-7jg5-frgc-c67w
This medium severity vulnerability with a CVSS score of 5.4 was published on 2026-10-20 via NVD.
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