Medium severity · published Aug 6, 2026
CVE-2026-66696
WordPress Gutenberg Blocks by Kadence Blocks plugin <= 3.7.8 - Sensitive Data Exposure vulnerability
4.3
CVSS
0.3%
EPSS
No
On KEV
Description
Contributor Sensitive Data Exposure in Gutenberg Blocks by Kadence Blocks <= 3.7.8 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GB
Gutenberg Blocks by Kadence Blocks · Nexcess
through 3.7.8 · source: vendor
Affected product
GB
Gutenberg Blocks by Kadence Blocks
Nexcess
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-66696
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-66696
patchstack.com
https://patchstack.com/database/wordpress/plugin/kadence-blocks/vulnerability/wordpress-gutenberg-blocks-by-kadence-blocks-plugin-3-7-8-sensitive-data-exposure-vulnerability?_s_id=cve