Medium severity · published Oct 29, 2026
CVE-2026-39742
WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.8.0.2 - Cross Site Scripting (XSS) vulnerability
New
6.5
CVSS
–
EPSS
No
On KEV
Description
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Liquid Web / StellarWP Gutenberg Blocks by Kadence Blocks kadence-blocks allows Stored XSS.This issue affects Gutenberg Blocks by Kadence Blocks: from n/a through 3.8.0.2.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GB
Gutenberg Blocks by Kadence Blocks · Liquid Web / StellarWP
through 3.8.0.2 · source: vendor
Affected product
GB
Gutenberg Blocks by Kadence Blocks
Liquid Web / StellarWP
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-39742
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-39742
vdb-entry
https://patchstack.com/database/wordpress/plugin/kadence-blocks/vulnerability/wordpress-gutenberg-blocks-by-kadence-blocks-plugin-3-8-0-2-cross-site-scripting-xss-vulnerability?_s_id=cve
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