CVE-2025-41075 MEDIUM

CVE-2025-41075: Multiple vulnerabilities in Limesurvey

Vendor Limesurvey
Product LimeSurvey
Weakness CWE-835
Published November 20, 2025
Last update November 20, 2025

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Vulnerability in LimeSurvey 6.13.0 in the endpoint /optin that causes infinite HTTP redirects when accessed directly. This behavior can be exploited to generate a Denegation of Service (DoS attack), by exhausting server or client resources. The system is unable to break the redirect loop, which can cause service degradation or browser instability.

Key dates

02Disclosure timeline

November 20, 2025 CVE published
November 20, 2025 Record updated