CVE-2025-26900: Flexmls Idx

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

Deserialization of Untrusted Data vulnerability in flexmls Flexmls® IDX flexmls-idx allows Object Injection.This issue affects Flexmls® IDX: from n/a through <= 3.14.27.

Affected products

• Flexmls Flexmls Idx: up to and including 3.14.27

Published 2025-02-25. Last modified 2026-06-17.