CVE-2026-114427

GutenKit 2.5.0 - 2.5.4 - Author+ Stored XSS via Page Settings Custom CSS

Published Nov 6, 2026 CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress-extensions
Wordpress-extensions gutenkit
Vendors & Products Wordpress-extensions
Wordpress-extensions gutenkit
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
Weaknesses CWE-93
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'}

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

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Nov 6, 2026, 12:00 PM
Reserved
Oct 21, 2026, 1:29 PM
Status
Deferred
Published
Nov 6, 2026, 6:16 AM
Modified
Nov 6, 2026, 8:09 PM