CVE-2026-90848

Medium

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.

SeverityMedium

CVSS4.3

Exploit probability—

ProductGovernikus Ausweisapp

PublishedSep 15, 2026

First seenSep 15, 2026

Weakness typeCWE-79Cross-site scripting (XSS)CWE-94Code injection

How to fix

Patches

governikus.de/loesungen/kundenprojekte/AusweisApp/

Affected products

Product	Affected versions	Fixed in
governikus ausweisapp	2.5.0, 2.5.1, 2.5.2, 2.5.3, 2.5.4	—

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.