CVE Vulnerabilities

CVE-2025-42941

Use of Web Link to Untrusted Target with window.opener Access

Published: Aug 12, 2025 | Modified: Aug 12, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

SAP Fiori (Launchpad) is vulnerable to Reverse Tabnabbing vulnerability due to inadequate external navigation protections for its link () elements. An attacker with administrative user privileges could exploit this by leveraging compromised or malicious pages. While administrative access is necessary for certain configurations, the attacker does not need the administrative privileges to execute the attack. This could result in unintended manipulation of user sessions or exposure of sensitive information. The issue impacts the confidentiality and integrity of the system, but the availability remains unaffected.

Weakness

The web application produces links to untrusted external sites outside of its sphere of control, but it does not properly prevent the external site from modifying security-critical properties of the window.opener object, such as the location property.

Potential Mitigations

  • When creating a link to an external document using the tag with a defined target, for example “_blank” or a named frame, provide the rel attribute with a value “noopener noreferrer”.
  • If opening the external document in a new window via javascript, then reset the opener by setting it equal to null.
  • Do not use “_blank” targets. However, this can affect the usability of the application.

References