{"id":"CVE-2020-15842","aliases":["EUVD-2020-7823","GHSA-mg3r-9jh8-33r9"],"status":"published","title":"Liferay Portal and Liferay DXP have Insecure Deserialization Vulnerability","description":"Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.01793,"percentile":0.78565,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2020-07-20T01:06:54Z","modified":"2026-10-24T10:30:37Z","fixes":[{"ecosystem":"Maven","package":"com.liferay.portal:release.portal.bom","fixed_in":["7.3.0"],"sources":["ghsa","osv"]},{"ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","fixed_in":["7.0.10.fp90","7.1.10.fp17","7.2.10.fp5"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"com.liferay.portal:release.portal.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.3.0"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.0.10.fp90"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1.0"},{"fixed":"7.1.10.fp17"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.2.0"},{"fixed":"7.2.10.fp5"}]}]},{"source":"osv","ecosystem":"Maven","package":"com.liferay.portal:release.portal.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.3.0"}]}],"versions":["7.0.6","7.0.6-1","7.0.6-2","7.1.0","7.1.1","7.1.2","7.1.3","7.1.3-1","7.2.0","7.2.1","7.2.1-1"]},{"source":"osv","ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.0.10.fp90"}]}],"versions":["7.0.10.fp60","7.0.10.fp61","7.0.10.fp62","7.0.10.fp63","7.0.10.fp64","7.0.10.fp65","7.0.10.fp66","7.0.10.fp67","7.0.10.fp68","7.0.10.fp69","7.0.10.fp70","7.0.10.fp71","7.0.10.fp72","7.0.10.fp73","7.0.10.fp74","7.0.10.fp75","7.0.10.fp76","7.0.10.fp77","7.0.10.fp78","7.0.10.fp79","7.0.10.fp80","7.0.10.fp81","7.0.10.fp82","7.0.10.fp83","7.0.10.fp84","7.0.10.fp85","7.0.10.fp85-1","7.0.10.fp86","7.0.10.fp86-1","7.0.10.fp87","7.0.10.fp87-1","7.0.10.fp88","7.0.10.fp89"]},{"source":"osv","ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.1.0"},{"fixed":"7.1.10.fp17"}]}],"versions":["7.1.10","7.1.10.fp1","7.1.10.fp10","7.1.10.fp11","7.1.10.fp12","7.1.10.fp13","7.1.10.fp14","7.1.10.fp15","7.1.10.fp16","7.1.10.fp2","7.1.10.fp3","7.1.10.fp4","7.1.10.fp5","7.1.10.fp6","7.1.10.fp7","7.1.10.fp8","7.1.10.fp9"]},{"source":"osv","ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.2.0"},{"fixed":"7.2.10.fp5"}]}],"versions":["7.2.1","7.2.10","7.2.10.fp1","7.2.10.fp1-1","7.2.10.fp2","7.2.10.fp3","7.2.10.fp4"]}],"products":[{"vendor":"liferay","product":"digital_experience_platform"},{"vendor":"liferay","product":"liferay_portal"}],"references":[{"url":"https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/119317427","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://issues.liferay.com/browse/LPE-16963","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Vendor Advisory","report","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15842","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mg3r-9jh8-33r9"},{"url":"https://github.com/liferay/liferay-portal","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-15842","description":"Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.","status":"published","published":"2020-07-20T01:06:54Z","modified":"2024-08-04T13:30:22.94Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:50.228781Z"}],"euvd":[{"id":"EUVD-2020-7823","description":"Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.","status":"published","published":"2020-07-20T01:06:54Z","modified":"2024-08-04T13:30:22Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AC:H/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:N","level":"high"}],"updated_at":"2026-11-03T03:07:30.36726Z"}],"ghsa":[{"id":"GHSA-mg3r-9jh8-33r9","title":"Liferay Portal and Liferay DXP have Insecure Deserialization Vulnerability","description":"Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.","status":"published","published":"2022-05-24T17:23:59Z","modified":"2025-05-28T20:01:38Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:38:44.991725Z"}],"nvd":[{"id":"CVE-2020-15842","description":"Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.","status":"published","published":"2020-07-20T02:15:11.66Z","modified":"2026-06-17T02:57:17.22Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:06:10.086163Z"}],"osv":[{"id":"CVE-2020-15842","description":"Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.","status":"published","published":"2020-07-20T02:15:11.66Z","modified":"2026-10-24T10:30:37.465543062Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:14.828228Z"},{"id":"GHSA-mg3r-9jh8-33r9","title":"Liferay Portal and Liferay DXP have Insecure Deserialization Vulnerability","description":"Liferay Portal before 7.3.0, and Liferay DXP 7.0 before fix pack 90, 7.1 before fix pack 17, and 7.2 before fix pack 5, allows man-in-the-middle attackers to execute arbitrary code via crafted serialized payloads, because of insecure deserialization.","status":"published","published":"2022-05-24T17:23:59Z","modified":"2025-05-28T20:42:12.274403Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:51.811331Z"}]}}