CVE-2020-36993

LimeSurvey <= 4.3.10 - 'Survey Menu' Persistent Cross-Site Scripting

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.

Affected

Limesurvey · LimeSurvey

CVSS v4.0 VULNCHECK

5.1 MEDIUMCVSS:4.0/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

CVSS v3.1 NVD

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS

0.29% chance of exploitation in the next 30 days, 20th percentile

Published

2026-01-28

Updated

2026-06-23

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/48762

Security advisories

• https://www.vulncheck.com/advisories/limesurvey-survey-menu-persistent-cross-site-scripti…
• LimeSurvey/LimeSurvey/commit/3712854a8fd8d875c67640969a1d54c4d93d3676
• https://www.limesurvey.org

References

• CVE Record
• NVD entry