{"action":"Upgrade apostrophe to 4.34.0 or later.","affected":[{"fixed":"4.34.0","introduced":"0"}],"component":"apostrophe","cve_ids":["CVE-2026-112958"],"ecosystem":"npm","exploited":false,"fixed_versions":["4.34.0"],"ghsa_id":"GHSA-7jg5-frgc-c67w","id":"tcs_01M5JKT66KGFF992T99K6TWSSD","modified_at":"2026-10-21T17:28:19.299025109Z","published_at":"2026-10-21T17:15:07Z","references":["https://osv.dev/vulnerability/GHSA-7jg5-frgc-c67w","https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-7jg5-frgc-c67w","https://nvd.nist.gov/vuln/detail/CVE-2026-112958","https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498","https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea","https://github.com/apostrophecms/apostrophe","https://github.com/apostrophecms/apostrophe/releases/tag/apostrophe@4.34.0"],"severity":{"label":"medium","score":5.4},"sources":[{"source":"osv","source_id":"GHSA-7jg5-frgc-c67w","url":"https://osv.dev/vulnerability/GHSA-7jg5-frgc-c67w"}],"summary":"ApostropheCMS: Stored XSS via Unescaped Widget Style Attribute Serialization"}