CVE-2025-13739: d3395 Cryptx

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The CryptX plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's `cryptx` shortcode in all versions up to, and including, 4.0.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Affected products

• d3395 Cryptx: up to and including 4.0.5

Published 2025-12-05. Last modified 2026-09-25.