Medium severity · published Oct 29, 2026
CVE-2026-27063
WordPress Kit (formerly ConvertKit) plugin <= 3.4.7 - Broken Access Control vulnerability
New
5.3
CVSS
–
EPSS
No
On KEV
Description
Missing Authorization vulnerability in Kit Kit (formerly ConvertKit) convertkit allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Kit (formerly ConvertKit): from n/a through 3.4.7.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KF
Kit (formerly ConvertKit) · Kit
through 3.4.7 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-27063
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-27063
vdb-entry
https://patchstack.com/database/wordpress/plugin/convertkit/vulnerability/wordpress-kit-formerly-convertkit-plugin-3-4-7-broken-access-control-vulnerability?_s_id=cve
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