CVE-2026-90848
Received Received - Intake

Cross-Site Scripting in Governikus AusweisApp

Publication date: 2026-09-15

Last updated on: 2026-09-15

Assigner: VulDB

Description
A weakness has been identified in Governikus AusweisApp up to 2.5.4. Affected is an unknown function of the component StartPAOSResponse Handler. Executing a manipulation of the argument ResultMessage can lead to cross site scripting. The attack can be launched remotely. Upgrading to version 2.5.5 is able to address this issue. It is recommended to upgrade the affected component. This CVE was requested by the vendor.

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Meta Information

Published
2026-09-15
Last Modified
2026-09-15
Generated
2026-09-15
AI Q&A
2026-09-15
EPSS Evaluated
N/A
NVD
CVE-2026-90848
EUVD
EUVD-2026-78245

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
governikus ausweisapp to 2.5.4 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-94 The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

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Executive Summary

This vulnerability is a cross-site scripting (XSS) weakness in Governikus AusweisApp versions up to 2.5.4. It involves a manipulation of the ResultMessage argument in the StartPAOSResponse Handler component, allowing remote attackers to inject malicious scripts.

Detection Guidance

This vulnerability is specific to Governikus AusweisApp versions up to 2.5.4 and involves a cross-site scripting issue in the StartPAOSResponse Handler component. Detection should focus on checking the installed version of the application. Compare your installed version against 2.5.5 or later.

Impact Analysis

The vulnerability could allow attackers to execute malicious scripts in your browser when using the affected AusweisApp. This might lead to unauthorized actions, data theft, or session hijacking if you interact with a compromised application.

Mitigation Strategies

Upgrade Governikus AusweisApp to version 2.5.5 or later immediately. This version addresses the cross-site scripting vulnerability in the StartPAOSResponse Handler component. Ensure all instances of the application are updated to prevent remote exploitation.

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