{"id":"CVE-2021-23899","aliases":["EUVD-2021-1360","GHSA-mm8j-9x84-m9cv"],"status":"published","title":"Arbitrary code injection in json-sanitizer","description":"OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.","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":"2026-11-11","score":0.02093,"percentile":0.81888,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-611"],"published":"2021-01-13T15:49:56Z","modified":"2026-10-20T14:18:24Z","fixes":[{"ecosystem":"Maven","package":"com.mikesamuel:json-sanitizer","fixed_in":["1.2.2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"com.mikesamuel:json-sanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.2"}]}]},{"source":"osv","ecosystem":"Maven","package":"com.mikesamuel:json-sanitizer","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.2"}]}],"versions":["1.0","1.1","1.2.0","1.2.1"]}],"products":[{"vendor":"owasp","product":"json-sanitizer"}],"references":[{"url":"https://github.com/OWASP/json-sanitizer/compare/v1.2.1...v1.2.2","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://groups.google.com/g/json-sanitizer-support/c/dAW1AeNMoA0","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/OWASP/json-sanitizer/commit/a37f594f7378a1c76b3283e0dab9e1ab1dc0247e","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23899","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mm8j-9x84-m9cv"}],"sources":{"cve":[{"id":"CVE-2021-23899","description":"OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.","status":"published","published":"2021-01-13T15:49:56Z","modified":"2024-08-03T19:14:09.335Z","updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-1360","description":"OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.","status":"published","published":"2021-01-13T15:49:56Z","modified":"2024-08-03T19:14:09Z","updated_at":"2026-11-03T03:24:59.661237Z"}],"ghsa":[{"id":"GHSA-mm8j-9x84-m9cv","title":"Arbitrary code injection in json-sanitizer","description":"OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.","status":"published","published":"2021-06-16T17:34:18Z","modified":"2023-02-01T05:05:24Z","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"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T14:36:34.260786Z"}],"nvd":[{"id":"CVE-2021-23899","description":"OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.","status":"published","published":"2021-01-13T16:15:14.413Z","modified":"2026-06-17T03:39:00.263Z","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-611"],"updated_at":"2026-11-02T14:06:49.284888Z"}],"osv":[{"id":"CVE-2021-23899","description":"OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.","status":"published","published":"2021-01-13T16:15:14.413Z","modified":"2026-10-20T14:18:24.430449098Z","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":"2026-11-02T15:44:18.778776Z"},{"id":"GHSA-mm8j-9x84-m9cv","title":"Arbitrary code injection in json-sanitizer","description":"OWASP json-sanitizer before 1.2.2 may emit closing SCRIPT tags and CDATA section delimiters for crafted input. This allows an attacker to inject arbitrary HTML or XML into embedding documents.","status":"published","published":"2021-06-16T17:34:18Z","modified":"2023-11-08T04:05:13.858556Z","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"}],"cwes":["CWE-611"],"updated_at":"2026-11-02T15:46:52.170928Z"}]}}