CVE-2026-19698

GutenKit < 2.5.1 - Contributor+ Stored CSS Injection

Published Sep 2, 2026 CVSS 3.1 · 3.5 Low EPSS < 1% KEV · Not listed
Description
The GutenKit WordPress plugin before 2.5.1 does not validate or escape style settings saved against a post before using them to build the CSS it outputs on the front end, allowing users with the Contributor role and above to inject arbitrary CSS into pages served to other users and to anonymous visitors. JavaScript execution is not possible at that role, so the impact is limited to defacement, interface redressing and forcing external resources to load.

Remediation

No solution or workaround provided in the CVE record

Tracking

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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
Description The GutenKit WordPress plugin before 2.5.1 does not validate or escape style settings saved against a post before using them to build the CSS it outputs on the front end, allowing users with the Contributor role and above to inject arbitrary CSS into pages served to other users and to anonymous visitors. JavaScript execution is not possible at that role, so the impact is limited to defacement, interface redressing and forcing external resources to load.
Title GutenKit < 2.5.1 - Contributor+ Stored CSS Injection
Weaknesses CWE-74
References
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N'}

ssvc

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
WPScan
Published
Updated
Sep 2, 2026, 2:57 PM
Reserved
Aug 13, 2026, 7:59 AM
Status
Deferred
Published
Sep 2, 2026, 3:17 PM
Modified
Sep 3, 2026, 5:50 PM