{"id":"CVE-2026-112958","revision":"09950a643ba2463aaa9c444f07af78f0","records":[{"revision":"09950a643ba2463aaa9c444f07af78f0","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-112958","aliases":[],"title":"ApostropheCMS: Stored XSS via Unescaped Widget Style Attribute Serialization","description":"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.","state":0,"publishedAt":"2026-10-20T16:03:53.041+00:00","modifiedAt":"2026-10-20T16:59:06.566+00:00","affected":[{"ecosystem":"Vendor product","name":"apostrophe","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"apostrophecms\",\n                    \"product\": \"apostrophe\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 4.34.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","score":5.4,"severity":"MEDIUM"}],"references":["https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-7jg5-frgc-c67w","https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498","https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea","https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.34.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112958","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-112958","identifiers":["CVE-2026-112958"]},"retained":false,"historicalAffected":[]}],"coverage":[]}