6.4
MEDIUM CVSS 3.1
CVE-2020-36993
LimeSurvey <= 4.3.10 - 'Survey Menu' Persistent Cross-Site Scripting
Description

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[parent_id] parameters to execute arbitrary JavaScript in administrative contexts.

INFO

Published Date :

Jan. 28, 2026, 1:15 p.m.

Last Modified :

Jan. 28, 2026, 1:15 p.m.

Remotely Exploit :

Yes !
Affected Products

The following products are affected by CVE-2020-36993 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 3.1 MEDIUM [email protected]
CVSS 4.0 MEDIUM 83251b91-4cc7-4094-a5c7-464a1b83ea10
CVSS 4.0 MEDIUM [email protected]
Solution
Update LimeSurvey to a version that addresses the stored XSS vulnerability in the Survey Menu.
  • Update LimeSurvey to a patched version.
  • Sanitize user inputs for Survey Menu parameters.
  • Implement output encoding for displayed menu data.
References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-36993 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-36993 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-36993 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-36993 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jan. 28, 2026

    Action Type Old Value New Value
    Added Description 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[parent_id] parameters to execute arbitrary JavaScript in administrative contexts.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
    Added CWE CWE-79
    Added Reference https://github.com/LimeSurvey/LimeSurvey/commit/3712854a8fd8d875c67640969a1d54c4d93d3676
    Added Reference https://www.exploit-db.com/exploits/48762
    Added Reference https://www.limesurvey.org
    Added Reference https://www.vulncheck.com/advisories/limesurvey-survey-menu-persistent-cross-site-scripting
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.1
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability
Base CVSS Score: 6.4
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact