{"id":"CVE-2020-11535","aliases":["EUVD-2020-3887","GHSA-2vgr-3xjr-x32c"],"status":"published","title":"An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious ...","description":"An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.02318,"percentile":0.83581,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-91"],"published":"2020-04-15T14:56:21Z","modified":"2026-10-20T10:51:45Z","products":[{"vendor":"onlyoffice","product":"document_server"}],"references":[{"url":"https://github.com/ONLYOFFICE/DocumentServer/blob/master/CHANGELOG.md#551","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory"]},{"url":"https://gist.github.com/andrewaeva/beb92d3d2f1c5672dbda5050e323f6a0","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-11535"},{"url":"https://github.com/advisories/GHSA-2vgr-3xjr-x32c"}],"sources":{"cve":[{"id":"CVE-2020-11535","description":"An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.","status":"published","published":"2020-04-15T14:56:21Z","modified":"2024-08-04T11:35:12.979Z","updated_at":"2026-11-02T14:35:57.67317Z"}],"euvd":[{"id":"EUVD-2020-3887","description":"An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.","status":"published","published":"2020-04-15T14:56:21Z","modified":"2024-08-04T11:35:12Z","updated_at":"2026-11-03T03:07:46.270701Z"}],"ghsa":[{"id":"GHSA-2vgr-3xjr-x32c","title":"An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious ...","description":"An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.","status":"published","published":"2022-05-24T17:14:39Z","modified":"2023-01-29T05:02:17Z","updated_at":"2026-11-02T14:45:02.517815Z"}],"nvd":[{"id":"CVE-2020-11535","description":"An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.","status":"published","published":"2020-04-15T15:15:19.683Z","modified":"2026-06-17T02:50:21.683Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-91"],"updated_at":"2026-11-02T14:05:59.125695Z"}],"osv":[{"id":"CVE-2020-11535","description":"An issue was discovered in ONLYOFFICE Document Server 5.5.0. An attacker can craft a malicious .docx file, and exploit XML injection to enter an attacker-controlled parameter into the x2t binary, to rewrite this binary and/or libxcb.so.1, and execute code on a victim's server.","status":"published","published":"2020-04-15T15:15:19.683Z","modified":"2026-10-20T10:51:45.871583263Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:14.034736Z"}]}}