CVE-2020-36993: LimeSurvey <= 4.3.10 - 'Survey Menu' Persistent Cross-Site Scripting

Published Jan 28, 2026
·
Updated

LimeSurvey 4.3.10 contains a stored cross-site scripting vulnerability in the Survey Menu functionality of the administration panel. Attackers can inject malicious SVG scripts through the Surveymenu[title] and Surveymenu[parentid] parameters to execute arbitrary JavaScript in administrative contexts.

Affected Software

2 affected components
Limesurvey LimeSurvey<=4.3.10
Limesurvey LimeSurvey<=4.3.10

Event History

Jan 28, 2026
CVE Published
via MITRE·12:29 PM
Data Sourced
via MITRE·12:29 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·01:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
May 8, 58063
Event
via NVD·06:21 PM
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Frequently Asked Questions

1

What is the severity of CVE-2020-36993?

CVE-2020-36993 is classified as a medium severity vulnerability due to its potential for persistent cross-site scripting.

2

How do I fix CVE-2020-36993?

To mitigate CVE-2020-36993, upgrade LimeSurvey to version 4.3.11 or later where the vulnerability is patched.

3

What impact does CVE-2020-36993 have on LimeSurvey users?

CVE-2020-36993 allows attackers to inject malicious scripts, potentially leading to unauthorized actions in the survey administration panel.

4

Are older versions of LimeSurvey at risk due to CVE-2020-36993?

Yes, versions of LimeSurvey up to and including 4.3.10 are vulnerable to CVE-2020-36993.

5

What actions should LimeSurvey administrators take regarding CVE-2020-36993?

LimeSurvey administrators should immediately upgrade to the latest version to protect against the vulnerability.

Contact

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