---
id: CVE-2026-90848
title: A weakness has been identified in Governikus AusweisApp up to 2.5.4
summary: >-
  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…
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'
cwe:
  - CWE-79
  - CWE-94
vendor: Governikus
product: AusweisApp
affected:
  - AusweisApp 2.5.0
  - AusweisApp 2.5.1
  - AusweisApp 2.5.2
  - AusweisApp 2.5.3
  - AusweisApp 2.5.4
published: '2026-09-15'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T17:18:18.380'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90848'
references:
  - url: 'https://vuldb.com/cve/CVE-2026-90848'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/925923'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403403'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/403403/cti'
    label: cna@vuldb.com
  - url: 'https://www.Governikus.de/loesungen/kundenprojekte/AusweisApp/'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-16T16:55:14.414318Z'
epss: 0.00449
epssPercentile: 0.36273
ingestedAt: '2026-09-15T02:19:07.439Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.