Medium severity · published Oct 6, 2026
CVE-2026-39791
WordPress Mailjet Email Marketing plugin <= 6.2.3 - Sensitive Data Exposure vulnerability
5.3
CVSS
0.2%
EPSS
No
On KEV
Description
Unauthenticated Sensitive Data Exposure in Mailjet Email Marketing <= 6.2.3 versions.
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?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Mailjet Email Marketing · Mailjet
through 6.2.3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-39791
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-39791
vdb-entry
https://patchstack.com/database/wordpress/plugin/mailjet-for-wordpress/vulnerability/wordpress-mailjet-email-marketing-plugin-6-2-3-sensitive-data-exposure-vulnerability?_s_id=cve