CVE-2023-5135: Replywp Simple Cloudfare Turnstile

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

The Simple Cloudflare Turnstile plugin for WordPress is vulnerable to Stored Cross-Site Scripting via 'gravity-simple-turnstile' shortcode in versions up to, and including, 1.23.1 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• Replywp Simple Cloudfare Turnstile: before 1.23.2 (fixed in 1.23.2)

Published 2023-09-27. Last modified 2026-06-17.