BaseFortify

Publication date: 2025-11-20

Last updated on: 2025-11-21

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

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.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-20

Last Modified

2025-11-21

Generated

2026-07-06

AI Q&A

2025-11-20

EPSS Evaluated

2026-07-05

NVD

CVE-2025-41074

Affected Vendors & Products

Vendor	Product	Version / Range
limesurvey	limesurvey	6.13.0

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-835	The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

Attack-Flow Graph

Executive Summary

This vulnerability in LimeSurvey 6.13.0 occurs at the /optout endpoint, causing infinite HTTP redirects when accessed directly. This creates a redirect loop that the system cannot break, leading to potential Denial of Service (DoS) attacks by exhausting server or client resources.

Impact Analysis

The vulnerability can cause service degradation or browser instability due to the infinite redirect loop. It can be exploited to perform a Denial of Service (DoS) attack by exhausting server or client resources, potentially making the service unavailable or unstable.

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