{"id":"CVE-2023-50883","aliases":["EUVD-2023-55616","GHSA-rcqr-8g6q-fmc3"],"status":"published","title":"ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function...","description":"ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expression (IIFE), and therefore a sandbox escape is possible by directly calling the constructor of the Function object. NOTE: this issue exists because of an incorrect fix for CVE-2021-43446.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00608,"percentile":0.49586,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2024-09-09T00:00:00Z","modified":"2026-10-28T02:30:39Z","products":[{"vendor":"onlyoffice","product":"docs"},{"vendor":"onlyoffice","product":"document_server"}],"references":[{"url":"https://www.onlyoffice.com/","tags":["Product","web"]},{"url":"https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2023-027.txt","tags":["Exploit","Third Party Advisory","web"]},{"url":"https://www.syss.de/pentest-blog/cross-site-scripting-schwachstelle-in-onlyoffice-docs-syss-2023-027","tags":["Third Party Advisory","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50883","tags":["advisory"]},{"url":"https://www.onlyoffice.com"},{"url":"https://github.com/advisories/GHSA-rcqr-8g6q-fmc3"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/50xxx/CVE-2023-50883.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-50883","description":"ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expression (IIFE), and therefore a sandbox escape is possible by directly calling the constructor of the Function object. NOTE: this issue exists because of an incorrect fix for CVE-2021-43446.","status":"published","published":"2024-09-09T00:00:00Z","modified":"2024-09-10T14:24:40.31Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:35:34.923818Z"}],"euvd":[{"id":"EUVD-2023-55616","description":"ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expression (IIFE), and therefore a sandbox escape is possible by directly calling the constructor of the Function object. NOTE: this issue exists because of an incorrect fix for CVE-2021-43446.","status":"published","published":"2024-09-09T00:00:00Z","modified":"2024-09-10T14:24:40Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:59.818548Z"}],"ghsa":[{"id":"GHSA-rcqr-8g6q-fmc3","title":"ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function...","description":"ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expression (IIFE), and therefore a sandbox escape is possible by directly calling the constructor of the Function object. NOTE: this issue exists because of an incorrect fix for CVE-2021-43446.","status":"published","published":"2024-09-09T21:31:22Z","modified":"2024-09-10T18:31:45Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:58:13.590318Z"}],"nvd":[{"id":"CVE-2023-50883","description":"ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expression (IIFE), and therefore a sandbox escape is possible by directly calling the constructor of the Function object. NOTE: this issue exists because of an incorrect fix for CVE-2021-43446.","status":"published","published":"2024-09-09T20:15:03.64Z","modified":"2026-06-17T06:40:09.51Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:09:19.052418Z"}],"osv":[{"id":"CVE-2023-50883","description":"ONLYOFFICE Docs before 8.0.1 allows XSS because a macro is an immediately-invoked function expression (IIFE), and therefore a sandbox escape is possible by directly calling the constructor of the Function object. NOTE: this issue exists because of an incorrect fix for CVE-2021-43446.","status":"published","published":"2024-09-09T00:00:00Z","modified":"2026-10-28T02:30:39.89631653Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:35.245372Z"}]}}