CVE-2026-90848: Cross Site Scripting in Governikus AusweisApp
CVE-2026-90848 is a cross-site scripting (XSS) vulnerability in the Governikus AusweisApp affecting versions 2.5.0 through 2.5.4. The issue exists in the StartPAOSResponse Handler component where manipulation of the ResultMessage argument can lead to XSS. The vulnerability can be exploited remotely and requires user interaction. Upgrading to version 2.5.5 addresses this issue.
AI Analysis
Technical Summary
This vulnerability in Governikus AusweisApp up to version 2.5.4 involves improper handling of the ResultMessage argument in the StartPAOSResponse Handler component, allowing an attacker to execute cross-site scripting (XSS) attacks remotely. The flaw permits injection of malicious scripts that could be executed in the context of the application. The vendor has released version 2.5.5 which fixes this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to session hijacking, information disclosure, or other client-side impacts. The attack requires user interaction and can be launched remotely. The CVSS 4.0 base score is 5.3, indicating a medium severity level.
Mitigation Recommendations
Upgrade Governikus AusweisApp to version 2.5.5 or later to remediate this vulnerability. This official fix addresses the cross-site scripting issue in the StartPAOSResponse Handler component. No other mitigation steps are indicated by the vendor.
CVE-2026-90848: Cross Site Scripting in Governikus AusweisApp
Description
CVE-2026-90848 is a cross-site scripting (XSS) vulnerability in the Governikus AusweisApp affecting versions 2.5.0 through 2.5.4. The issue exists in the StartPAOSResponse Handler component where manipulation of the ResultMessage argument can lead to XSS. The vulnerability can be exploited remotely and requires user interaction. Upgrading to version 2.5.5 addresses this issue.
CVSS v4.0
Score 5.3medium
Affected software
Governikus
AusweisApp
pkg:github/governikus/ausweisappcpe:2.3:a:governikus:ausweisapp:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Governikus AusweisApp up to version 2.5.4 involves improper handling of the ResultMessage argument in the StartPAOSResponse Handler component, allowing an attacker to execute cross-site scripting (XSS) attacks remotely. The flaw permits injection of malicious scripts that could be executed in the context of the application. The vendor has released version 2.5.5 which fixes this vulnerability.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to session hijacking, information disclosure, or other client-side impacts. The attack requires user interaction and can be launched remotely. The CVSS 4.0 base score is 5.3, indicating a medium severity level.
Mitigation Recommendations
Upgrade Governikus AusweisApp to version 2.5.5 or later to remediate this vulnerability. This official fix addresses the cross-site scripting issue in the StartPAOSResponse Handler component. No other mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-14T05:24:00.388Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6aa8a72855bf5e2cf5fa7f7b
Added to database: 09/15/2026, 02:02:16 UTC
Last enriched: 09/15/2026, 02:16:52 UTC
Last updated: 09/15/2026, 03:17:50 UTC
Views: 5
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