Description
WordPress Plugin Newsletter is prone to an SQL injection vulnerability because it fails to sufficiently sanitize user-supplied data before using it in an SQL query. Exploiting this issue could allow an attacker to compromise the application, access or modify data, or exploit latent vulnerabilities in the underlying database. WordPress Plugin Newsletter version 3.0.8 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 3.0.9 or latest
References
Related Vulnerabilities
WordPress Plugin Image Gallery with Slideshow Multiple Vulnerabilities (1.5.2)
WordPress Plugin WP PRO Advertising System-All In One Ad Manager SQL Injection (4.6.18)
WordPress Plugin ShiftNav-Responsive Mobile Menu Cross-Site Scripting (1.5.2)
WordPress Plugin WordPress Page Contact SQL Injection (1.0)
WordPress Plugin DethemeKit For Elementor Multiple Cross-Site Scripting Vulnerabilities (1.5.5.4)