{"id":"CVE-2024-47878","aliases":["GHSA-pw3x-c5vp-mfc3"],"url":"https://o3.security/vulnerability/CVE-2024-47878","summary":"Reflected cross-site scripting vulnerability (XSS) in GData extension (authorized.vt)","details":"### Summary\n\nThe `/extension/gdata/authorized` endpoint includes the `state` GET parameter verbatim in a `<script>` tag in the output, so without escaping.\n\nAn attacker could lead or redirect a user to a crafted URL containing JavaScript code, which would then cause that code to be executed in the victim's browser as if it was part of OpenRefine.\n\n### Details\n\nThe `state` GET parameter is read from:\n\n* extensions/gdata/module/MOD-INF/controller.js:105\n\nIt is used (as `$state`) in:\n\n* extensions/gdata/module/authorized.vt:43\n\nThere is no check that the state has the expected format (base64-encoded JSON with values like \"openrefine123...\" and \"cb123...\"), or that the page was indeed opened as part of the authorization flow.\n\n### PoC\n\nNavigate to:\n\n    http://localhost:3333/extension/gdata/authorized?state=%22,alert(1),%22&error=\n\nAn alert box pops up.\n\nThe gdata extension needs to be present. No other configuration is needed; specifically, it is not required to have a client ID or client secret set.\n\n### Impact\n\nExecution of arbitrary JavaScript in the user's browser. The attacker-provided code can do anything the user can do, including deleting projects, retrieving database passwords, or executing arbitrary Jython or Closure expressions, if those extensions are also present.","published":"2024-10-24T20:11:19.814Z","modified":"2026-08-12T09:11:30.090907Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N"},"epss":{"score":0.00432,"percentile":0.36212,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Maven","name":"org.openrefine:extensions","fixedVersion":"3.8.3"}],"fix":{"url":"https://github.com/OpenRefine/OpenRefine/commit/10bf0874d67f1018a58b3732332d76b840192fea","label":"OpenRefine/OpenRefine@10bf087"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/47xxx/CVE-2024-47878.json"},{"type":"ADVISORY","url":"https://github.com/OpenRefine/OpenRefine/security/advisories/GHSA-pw3x-c5vp-mfc3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-47878"},{"type":"FIX","url":"https://github.com/OpenRefine/OpenRefine/commit/10bf0874d67f1018a58b3732332d76b840192fea"},{"type":"PACKAGE","url":"https://github.com/OpenRefine/OpenRefine"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T09:11:30.090907Z"}}