LimeSurvey Vulnerability in Endpoint Leading to Denial of Service
CVE-2025-41074

6.9MEDIUM

Key Information:

Vendor

Limesurvey

Status
Limesurvey
Vendor
CVE Published:
20 November 2025

What is CVE-2025-41074?

A vulnerability in LimeSurvey version 6.13.0 can be exploited through the endpoint /optout to trigger infinite HTTP redirects. When accessed, this results in excessive resource consumption and can lead to service degradation or browser instability, as the system fails to escape the redirect loop. This behavior poses significant risks as it may result in Denial of Service (DoS) attacks, impeding normal operations and causing disruptions.

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Affected Version(s)

LimeSurvey 6.13.0

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multip...

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Julen Garrido Estevez
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