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          "value": "The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. From version 25.08 to before version 26.05, the IIIF Auth 2.0 endpoints auth/login and auth/token in AuthorizationFlowResource accept an origin query parameter without validation and then (1) embed it into the Content-Security-Policy: frame-ancestors response header and (2) embed it into an HTML response body as a JavaScript single-quoted postMessage argument. Because the attacker controls both the login and token calls that initiate the flow, the unescaped value yields reflected XSS. This issue has been patched in version 26.05."
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
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              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
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            {
              "cweId": "CWE-113",
              "description": "CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers (\u0027HTTP Request/Response Splitting\u0027)",
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              "type": "CWE"
            }
          ]
        },
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            {
              "cweId": "CWE-1336",
              "description": "CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine",
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              "type": "CWE"
            }
          ]
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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          "name": "https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-975w-g9gj-xq48",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-975w-g9gj-xq48"
        },
        {
          "name": "https://github.com/intranda/goobi-viewer-core/commit/0e488c6b02a28c1d1a747dfe3958ad2bbcff2d0b",
          "tags": [
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          ],
          "url": "https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05"
        }
      ],
      "source": {
        "advisory": "GHSA-975w-g9gj-xq48",
        "discovery": "UNKNOWN"
      },
      "title": "Goobi viewer: IIIF Auth 2.0 origin parameter unsanitized \u2014 CSP malformation and reflected XSS"
    }
  },
  "cveMetadata": {
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    "dateReserved": "2026-06-16T22:28:27.061Z",
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  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-55486\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-10-30T15:08:32.647111Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-10-30T15:08:36.695Z\"}}], \"cna\": {\"title\": \"Goobi viewer: IIIF Auth 2.0 origin parameter unsanitized \\u2014 CSP malformation and reflected XSS\", \"source\": {\"advisory\": \"GHSA-975w-g9gj-xq48\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 9.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"intranda\", \"product\": \"goobi-viewer-core\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 25.08, \u003c 26.05\"}]}], \"references\": [{\"url\": \"https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-975w-g9gj-xq48\", \"name\": \"https://github.com/intranda/goobi-viewer-core/security/advisories/GHSA-975w-g9gj-xq48\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/intranda/goobi-viewer-core/commit/0e488c6b02a28c1d1a747dfe3958ad2bbcff2d0b\", \"name\": \"https://github.com/intranda/goobi-viewer-core/commit/0e488c6b02a28c1d1a747dfe3958ad2bbcff2d0b\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05\", \"name\": \"https://github.com/intranda/goobi-viewer-core/releases/tag/v26.05\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. From version 25.08 to before version 26.05, the IIIF Auth 2.0 endpoints auth/login and auth/token in AuthorizationFlowResource accept an origin query parameter without validation and then (1) embed it into the Content-Security-Policy: frame-ancestors response header and (2) embed it into an HTML response body as a JavaScript single-quoted postMessage argument. Because the attacker controls both the login and token calls that initiate the flow, the unescaped value yields reflected XSS. This issue has been patched in version 26.05.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-79\", \"description\": \"CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-113\", \"description\": \"CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers (\u0027HTTP Request/Response Splitting\u0027)\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-1336\", \"description\": \"CWE-1336: Improper Neutralization of Special Elements Used in a Template Engine\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-10-23T14:17:42.732Z\"}}}",
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