Cross-Origin-Opener-Policy Misconfiguration

Anandhu Krishnan

Published on

14 May 2024

Vulnerability

Description

Inadequate protection of browsing context can compromise sensitive data by allowing untrusted documents to share the same context, leading to potential data leaks.

Recommendation

To prevent unauthorized access, configure your web server/application to set the Cross-Origin-Opener-Policy header with a value of ‘same-origin’. Consider using modern browsers that support this feature for enhanced security.

Automated human-like penetration testing for your web apps & APIs

Teams using Beagle Security are set up in minutes, embrace release-based CI/CD security testing and save up to 65% with timely remediation of vulnerabilities. Sign up for a free account to see what it can do for you.

Product tour

Written by