Governikus AusweisApp StartPAOSResponse cross site scripting

{
  "id": "ee8abea2815925e72c8cc67fabfbb29f39485a98d58fd3210c8e7a3976df3cca",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-90848",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Governikus AusweisApp StartPAOSResponse cross site scripting",
    "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 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.",
    "evidence": "cve:CVE-2026-90848",
    "products": [
      {
        "name": {
          "value": "AusweisApp",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-90848",
      "aliases": [
        "CVE-2026-90848"
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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"
          }
        },
        {
          "cvssV3_1": {
            "version": "3.1",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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"
          }
        },
        {
          "cvssV3_0": {
            "version": "3.0",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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"
          }
        },
        {
          "cvssV2_0": {
            "version": "2.0",
            "baseScore": 5,
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N/E:ND/RL:OF/RC:C"
          }
        }
      ],
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:governikus:ausweisapp:*:*:*:*:*:*:*:*"
          ],
          "vendor": "Governikus",
          "modules": [
            "StartPAOSResponse Handler"
          ],
          "product": "AusweisApp",
          "versions": [
            {
              "status": "affected",
              "version": "2.5.0"
            },
            {
              "status": "affected",
              "version": "2.5.1"
            },
            {
              "status": "affected",
              "version": "2.5.2"
            },
            {
              "status": "affected",
              "version": "2.5.3"
            },
            {
              "status": "affected",
              "version": "2.5.4"
            },
            {
              "status": "unaffected",
              "version": "2.5.5"
            }
          ]
        }
      ],
      "modified": "2026-10-26T22:38:49.213Z",
      "provider": "cve",
      "references": [
        "https://vuldb.com/vuln/403403",
        "https://vuldb.com/vuln/403403/cti",
        "https://vuldb.com/cve/CVE-2026-90848",
        "https://vuldb.com/submit/925923",
        "https://turingpoint.de/en/advisories/tp-2026-113/",
        "https://www.Governikus.de/loesungen/kundenprojekte/AusweisApp/"
      ],
      "provider_metadata": {
        "adp": [
          {
            "title": "CISA ADP Vulnrichment",
            "metrics": [
              {
                "other": {
                  "type": "ssvc",
                  "content": {
                    "id": "CVE-2026-90848",
                    "role": "CISA Coordinator",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "version": "2.0.3",
                    "timestamp": "2026-09-16T16:55:14.414318Z"
                  }
                }
              }
            ],
            "providerMetadata": {
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP",
              "dateUpdated": "2026-09-16T16:55:26.870Z"
            }
          }
        ],
        "cna": {
          "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
          "shortName": "VulDB",
          "dateUpdated": "2026-10-26T22:38:49.213Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-90848",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 357746,
  "published_at": "2026-09-15T01:15:15.331+00:00"
}