CVE-2021-34634: Sola-Newsletters Project Sola-Newsletters

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

The Nifty Newsletters WordPress plugin is vulnerable to Cross-Site Request Forgery via the sola_nl_wp_head function found in the ~/sola-newsletters.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 4.0.23.

Affected products

• Sola-Newsletters Project Sola-Newsletters: up to and including 4.0.23

Published 2021-08-05. Last modified 2026-06-17.