CVE-2026-66619 WordPress Newsletters plugin <= 4.18 - SQL Injection vulnerability
Administrators can exploit SQL injection in the Newsletters plugin to read or modify database contents.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-66619?
CVE-2026-66619 is a high-severity SQL injection vulnerability in Tribulant Software Newsletters, published on 17 Sep 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Administrator SQL Injection in Newsletters <= 4.18 versions.
Weakness: CWE-89
Which versions are affected by CVE-2026-66619?
How do I fix CVE-2026-66619?
No fix has been published for CVE-2026-66619 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-66619 being exploited?
There is no known exploitation of CVE-2026-66619 in the wild and no public exploit code.
Sources
Also known as GHSA-8qv8-7m3w-7633.