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Security: markappmedia/Prebid.js

SECURITY.md

Security Policy

Supported Versions

This repository is a fork of Prebid.js maintained by MarkApp for integration with Pantheon (SSP) and Harion (DSP) bid adapter development.

Version Supported
master ✅ Yes

Reporting a Vulnerability

Do not open a public GitHub issue for security vulnerabilities.

Please report security vulnerabilities privately via GitHub's Private Vulnerability Reporting feature.

What to include

  • Description of the vulnerability and potential impact
  • Steps to reproduce
  • Affected bid adapters, modules, or core components
  • Any suggested remediation

Response timeline

  • Acknowledgement: within 48 hours
  • Initial assessment: within 5 business days
  • Patch or mitigation: within 30 days for critical issues

Security practices

  • All dependencies are monitored via Dependabot with automatic security updates enabled
  • Secret scanning is active on this repository
  • Private vulnerability reporting is enabled
  • Fork is regularly synced with upstream prebid/Prebid.js
  • Bid adapter code is reviewed for data leakage and unauthorized tracking

Scope

Security issues we care about:

  • Bid adapter data leakage (user data sent to unauthorized endpoints)
  • Supply chain attacks via npm dependencies
  • XSS vulnerabilities in ad rendering
  • Privacy regulation violations (GDPR, CCPA) in adapter implementations

Contact

For urgent security matters, contact: security@markapp.io

There aren’t any published security advisories