CVE-2026-19698 | BDVDB-2026-367272 Detail

GutenKit

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.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact low, availability impact none. Attack vector: network.

Weaknesses#

CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

References#

https://wpscan.com/vulnerability/0e6cd37e-3004-498d-8d8d-21617138888a/

Exploit#

https://wpscan.com/vulnerability/0e6cd37e-3004-498d-8d8d-21617138888a/

History#

Version 12026-09-02Record published in the CVE List.

Published

Published: 2026-09-02
Last modified: 2026-09-02

Vendor information

Vendor: Not stated
Product: GutenKit

Score

3.5 Low

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 21.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Not classified

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< 2.5.1
Fixed
2.5.1

Scoring System

CVSS v4.0

Not available

CVSS v3.1

3.5 Low

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:L/I:L/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	High
User Interaction	Required
Scope	Unchanged
Confidentiality	Low
Integrity	Low
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).