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7.6

WordPress Newsletters plugin lets admin run harmful database commands

CVE-2026-66619 · published 1 month ago
Summary

Versions of the Newsletters plugin for WordPress up to 4.18 allow an administrator to insert special commands into the database. This could let the admin view, change, or delete data they shouldn't access. Update the plugin to the newest version or disable/remove it until a safe release is available.

What to do
  • Update tribulant software newsletters to version 4.18.1.
Affected software
VendorProductAffected versions
tribulant software newsletters <= 4.18
Fix: upgrade to 4.18.1
Original advisory text
WordPress Newsletters plugin <= 4.18 - SQL Injection vulnerability
Administrator SQL Injection in Newsletters <= 4.18 versions.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
7.6 High
Exploitation
<1% chance of attack within 30 days
Type
CWE-89SQL Injection
Timeline
Published17 Sep 2026
Updated4 Nov 2026
First seen17 Sep 2026
Sources
CVE-2026-66619 · NVD
CVE-2026-66619 · MITRE
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