CVE-2024-10552: Flexmls Idx Plugin

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

The Flexmls® IDX Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘api_key’ and 'api_secret' parameters in all versions up to, and including, 3.14.26 due to insufficient input sanitization and output escaping. 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. The vulnerability was partially patched in version 3.14.25.

Affected products

• Flexmls Flexmls Idx Plugin: up to and including 3.14.26

Published 2025-01-25. Last modified 2026-06-17.