CVE-2026-90848

Governikus AusweisApp StartPAOSResponse cross site scripting

MEDIUM
4.3
CVSS Score
Published: September 15, 2026 at 01:15 AM UTC
Updated: October 26, 2026 at 11:17 PM UTC
1 product affected across 1 vendorAusweisApp

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vendor states this is fixed in 2.5.5 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/403403
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/403403/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-90848
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/925923

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79CWE-94

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