{"id":"CVE-2026-90561","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-90561","summary":"Strapi versions 4.x through 4.26.2 and 5.x before 5.48.1 contain a stored cross-site scripting vulnerability in the content manager WYSIWYG preview component that fails to strip script…","details":"Strapi versions 4.x through 4.26.2 and 5.x before 5.48.1 contain a stored cross-site scripting vulnerability in the content manager WYSIWYG preview component that fails to strip script tags from rich text. An Author-role user can store malicious script tags in rich text fields that execute in an Editor or Super Admin's session when the preview pane is expanded, enabling account takeover.","published":"2026-09-13T11:17:00.613","modified":"2026-09-13T11:17:00.613","cvss":{"score":8.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/strapi/strapi/commit/875752612c30f951546904a29469e51e17e0ac37","label":"strapi/strapi@8757526"},"references":[{"type":"WEB","url":"https://github.com/strapi/strapi"},{"type":"WEB","url":"https://github.com/strapi/strapi/blob/v5.46.0/packages/core/content-manager/admin/src/pages/EditView/components/FormInputs/Wysiwyg/PreviewWysiwyg.tsx"},{"type":"WEB","url":"https://github.com/strapi/strapi/commit/875752612c30f951546904a29469e51e17e0ac37"},{"type":"WEB","url":"https://github.com/strapi/strapi/issues/26857"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/strapi-4-x-through-4.26.2-and-5-x-before-5.48.1-stored-xss-via-wysiwyg"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-13T11:17:00.613"}}