What is CVE-2026-114427?

CVE-2026-114427 is a medium-severity vulnerability in Gutenkit, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-11-06.

How severe is CVE-2026-114427?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Gutenkit

CVE-2026-114427

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.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-11-06 · last modified 2026-11-06.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Gutenkit

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

wpscan.com/vulnerability/c5380cc6-55e5-4ccd-8b83-c611139800b1/ (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-114427?: CVE-2026-114427 is a medium-severity vulnerability in Gutenkit, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-11-06.
How severe is CVE-2026-114427?: Medium severity. CVSS v3 base score is 6.8 out of 10.