Deserialization Vulnerability in LimeSurvey by LimeSurvey GmbH
CVE-2025-56422

9.8CRITICAL

Key Information:

Vendor

LimeSurvey GmbH

Status
LimeSurvey
Vendor
CVE Published:
10 March 2026

What is CVE-2025-56422?

A deserialization flaw exists in LimeSurvey prior to version 6.15.0+250623 that enables remote attackers to execute arbitrary code on the server. This can lead to system compromise and data loss, making it crucial for users to upgrade to the latest version to mitigate potential risks.

References

http://limesurvey.com
https://github.com/hongancalif/security-advisories/blob/m...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.