High severity · published Sep 17, 2026
CVE-2026-66619
WordPress Newsletters plugin <= 4.18 - SQL Injection vulnerability
7.6
CVSS
0.4%
EPSS
No
On KEV
Description
Administrator SQL Injection in Newsletters <= 4.18 versions.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NE
Newsletters · Tribulant Software
through 4.18 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-66619
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-66619
patchstack.com
https://patchstack.com/database/wordpress/plugin/newsletters-lite/vulnerability/wordpress-newsletters-plugin-4-18-sql-injection-vulnerability?_s_id=cve
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