CVE-2025-41074

Multiple vulnerabilities in Limesurvey

Published Nov 20, 2025 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
Description
Vulnerability in LimeSurvey 6.13.0 in the endpoint /optout 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.

Remediation

Vendor Solution

The vulnerabilities have been fixed by the Limesurvey team in the version 6.15.0.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Limesurvey
Limesurvey limesurvey
CPEs cpe:2.3:a:limesurvey:limesurvey:6.13.0:*:*:*:*:*:*:*
Vendors & Products Limesurvey
Limesurvey limesurvey
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Vulnerability in LimeSurvey 6.13.0 in the endpoint /optout 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.
Title Multiple vulnerabilities in Limesurvey
Weaknesses CWE-835
References
Metrics cvssV4_0

{'score': 6.9, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
INCIBE
Published
Updated
Nov 20, 2025, 6:32 PM
Reserved
Apr 16, 2025, 9:09 AM
Status
Analyzed
Published
Nov 20, 2025, 3:17 PM
Modified
Oct 19, 2026, 1:10 PM