CVE-2025-56422: Limesurvey

Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days.

A deserialization vulnerability in LimeSurvey before v6.15.0+250623 allows a remote attacker to execute arbitrary code on the server.

Affected products

• Limesurvey Limesurvey: up to and including 6.14.3

Published 2026-03-10. Last modified 2026-07-05.