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.
History

Fri, 18 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 13 Sep 2026 11:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Strapi 4.x through 4.26.2 and 5.x before 5.48.1 Stored XSS via WYSIWYG
First Time appeared Strapi
Strapi strapi
Weaknesses CWE-79
CPEs cpe:2.3:a:strapi:strapi:*:*:*:*:*:*:*:*
Vendors & Products Strapi
Strapi strapi
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.3, 'vector': '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-13T10:45:35.988Z

Updated: 2026-09-24T14:21:46.210Z

Reserved: 2026-09-12T11:13:43.327Z

Link: CVE-2026-90561

cve-icon Vulnrichment

Updated: 2026-09-18T17:17:10.364Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-13T11:17:00.613

Modified: 2026-09-24T21:08:22.573

Link: CVE-2026-90561

cve-icon Redhat

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