The GutenKit WordPress plugin before 2.5.5 does not properly sanitize custom CSS saved against a post before printing it inside an inline style block on the published page, allowing users with the Author role and above to break out of the style element and store JavaScript that executes in the browser of any visitor who views the post. Exploitation affects sites running WordPress below 7.0.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 06 Nov 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-93

Fri, 06 Nov 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H'}


Fri, 06 Nov 2026 07:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79
CWE-93

Fri, 06 Nov 2026 06:15:00 +0000

Type Values Removed Values Added
Description The GutenKit WordPress plugin before 2.5.5 does not properly sanitize custom CSS saved against a post before printing it inside an inline style block on the published page, allowing users with the Author role and above to break out of the style element and store JavaScript that executes in the browser of any visitor who views the post. Exploitation affects sites running WordPress below 7.0.
Title GutenKit 2.5.0 - 2.5.4 - Author+ Stored XSS via Page Settings Custom CSS
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: WPScan

Published:

Updated: 2026-11-06T12:00:54.238Z

Reserved: 2026-10-21T13:29:11.377Z

Link: CVE-2026-114427

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-06T06:16:40.160

Modified: 2026-11-06T13:17:24.507

Link: CVE-2026-114427

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-06T15:00:07Z

Weaknesses