CVE-2026-90848

Governikus AusweisApp StartPAOSResponse cross site scripting

State: Published
Severity: 5.3 Medium
Published: Sep 15, 2026
Updated: Oct 26, 2026
Reserved: Sep 14, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X	VulDB
3.1	4.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C	VulDB
3.0	4.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C	VulDB
2.0	5.0 Medium	AV:N/AC:L/Au:N/C:N/I:P/A:N/E:ND/RL:OF/RC:C	VulDB

Weaknesses

CWE-79 Cross Site Scripting
CWE-94 Code Injection

Affected Products

Product	Versions
AusweisAppGovernikus	2.5.0Affected 2.5.1Affected 2.5.2Affected 2.5.3Affected 2.5.4Affected 2.5.5Not affected

References

VDB-403403 | Governikus AusweisApp StartPAOSResponse cross site scriptingvdb-entrytechnical-description
VDB-403403 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
CVE-2026-90848 | CVE Analysis and Reportthird-party-advisory
Submit #925923 | Governikus GmbH & Co. KG AusweisApp (Desktop) 2.5.4 Cross Site Scriptingthird-party-advisory
https://turingpoint.de/en/advisories/tp-2026-113/related
https://www.governikus.de/loesungen/kundenprojekte/AusweisApp/patch

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