Advisory

On 12.08.2025 a security relevant correction has been released by SAP SE. The manufacturer resolves an issue within SAP UI5.

SAP Note 3624943 addresses "[CVE-2025-42941] Reverse Tabnabbing vulnerability in SAP Fiori (Launchpad)" to prevent reverse tabnabbing with a low risk for exploitation.

A workaround does not exist, according to SAP Security Advisory team. It is advisable to implement the correction as part of maintenance, the team suggests.

Reverse tabnabbing is an attack where a page linked from the target page is able to rewrite that page, for example to replace it with a phishing site. The following figure shows a brief illustration:

Reverse Tabnabbing Overview — Source: OWASP.org

While the user was originally on the correct page there is a high risk they will not notice that it has been changed to a phishing site.

Risk specification

This note has been re-released with updated solution information. SAP Fiori Launchpad lacks sufficient external navigation protection in tile links, allowing administrators to configure malicious URLs that can hijack user sessions or expose sensitive data.

Solution

Fiori Launchpad links now include proper protection annotations for external navigation.

The advisory is valid for

SAP_UI 754 ²⁸

Disclaimer

SecurityBridge takes the security of SAP products very seriously. We very much encourage the responsible disclosure of security vulnerabilities. If you have detected a vulnerability concerning one of the SAP software products – either in the latest or in a former product version follow the guidelines and processes in accordance with the SAP portal page “Report a Security Vulnerability to SAP”.

The advisories found within the SecurityBridge advisory are generated and continuously enriched by our Team at SecurityBridge and affiliated security consultants, partners, customers of the SecurityBridge Platform, SAP support, and advisory groups.

We do not disclose zero-day vulnerabilities unless a security patch has been made available to the public. In such case, the platform only provides details on which version or signature updates are available within the SecurityBridge platform in order to monitor or measure the vulnerability.

In accordance with SAP guidelines, SecurityBridge only discloses issues where the fixing security note has been released. The vulnerability platform makes no references to available exploits or Proof of Concepts (PoC). Advisories and vulnerabilities will always mention the fixing security note or hints to the corresponding SAP documentation.

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Notifications

Affected system SAP UI5

CVSS 3.5

Component CA-FLP-FE-COR

Patch Day2025-09

Released on2025/08/12

SAP Note 3624943

Workaround No

Advisory

Risk specification

Solution

Disclaimer

_{Affected system}
SAP UI5

_CVSS
3.5

_Component
CA-FLP-FE-COR

_{Patch Day}
2025-09

_{Released
on}
2025/08/12

_{SAP Note}
3624943

_Workaround
No