CVE-2026-90561
- Source
- https://cve.org/CVERecord?id=CVE-2026-90561
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90561.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-90561
- Published
- 2026-09-13T10:45:35Z
- Modified
- 2026-10-21T03:00:06Z
- Severity
-
- 9.3 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N CVSS Calculator
- Summary
- Strapi 4.x through 4.26.2 and 5.x before 5.48.1 Stored XSS via WYSIWYG
- 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.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-79" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90561.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90561.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-90561
- https://www.vulncheck.com/advisories/strapi-4-x-through-4.26.2-and-5-x-before-5.48.1-stored-xss-via-wysiwyg
- https://github.com/strapi/strapi/issues/26857
- https://github.com/strapi/strapi/commit/875752612c30f951546904a29469e51e17e0ac37
- https://github.com/strapi/strapi
- https://github.com/strapi/strapi/blob/v5.46.0/packages/core/content-manager/admin/src/pages/EditView/components/FormInputs/Wysiwyg/PreviewWysiwyg.tsx
Affected packages
Git / github.com/strapi/strapi
Affected ranges
- Type
- GIT
- Repo
- https://github.com/strapi/strapi
- Events
-
IntroducedLast AffectedIntroducedFixedFixed
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "4.0.0" }, { "last_affected": "4.26.2" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "introduced": "5.0.0" }, { "fixed": "5.48.1" } ], "source": "AFFECTED_FIELD", "strategy": "StandardRange" }, { "range": [ { "fixed": "875752612c30f951546904a29469e51e17e0ac37" } ], "source": "REFERENCES_COMMIT" } ] }