{"id":"CVE-2021-29047","aliases":["EUVD-2021-15693","GHSA-9mxg-p873-6793"],"status":"published","title":"Liferay Portal and Liferay DXP Fails to Invalidate CAPTCHA Answers After Use","description":"The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01065,"percentile":0.64969,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-287"],"published":"2021-05-16T15:29:52Z","modified":"2026-10-24T10:30:25Z","fixes":[{"ecosystem":"Maven","package":"com.liferay.portal:release.portal.bom","fixed_in":["7.3.6"],"sources":["ghsa","osv"]},{"ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","fixed_in":["7.3.10.fp1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"com.liferay.portal:release.portal.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.3.4"},{"fixed":"7.3.6"}]}]},{"source":"ghsa","ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.3.10.fp1"}]}]},{"source":"osv","ecosystem":"Maven","package":"com.liferay.portal:release.portal.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.3.4"},{"fixed":"7.3.6"}]}],"versions":["7.3.4","7.3.5"]},{"source":"osv","ecosystem":"Maven","package":"com.liferay.portal:release.dxp.bom","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.3.10.fp1"}]}],"versions":["7.0.10.14","7.0.10.14-1","7.0.10.16","7.0.10.17","7.0.10.7","7.0.10.8","7.0.10.9","7.0.10.fp100","7.0.10.fp101","7.0.10.fp102","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","7.0.10.fp90","7.0.10.fp91","7.0.10.fp92","7.0.10.fp94","7.0.10.fp94-1","7.0.10.fp95","7.0.10.fp95-1","7.0.10.fp95-2","7.0.10.fp97","7.0.10.fp98","7.1.10","7.1.10.1","7.1.10.3","7.1.10.4","7.1.10.5","7.1.10.6","7.1.10.7","7.1.10.8","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.fp17","7.1.10.fp18","7.1.10.fp19","7.1.10.fp2","7.1.10.fp20","7.1.10.fp22","7.1.10.fp24","7.1.10.fp25","7.1.10.fp26","7.1.10.fp27","7.1.10.fp28","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","7.2.1","7.2.10","7.2.10.1","7.2.10.2","7.2.10.3","7.2.10.3-1","7.2.10.4","7.2.10.4-1","7.2.10.5","7.2.10.5-1","7.2.10.6","7.2.10.7","7.2.10.8","7.2.10.fp1","7.2.10.fp1-1","7.2.10.fp10","7.2.10.fp11","7.2.10.fp12","7.2.10.fp13","7.2.10.fp14","7.2.10.fp15","7.2.10.fp16","7.2.10.fp17","7.2.10.fp18","7.2.10.fp19","7.2.10.fp2","7.2.10.fp20","7.2.10.fp3","7.2.10.fp4","7.2.10.fp5","7.2.10.fp6","7.2.10.fp7","7.2.10.fp8","7.2.10.fp9","7.3.10","7.3.10.ep3","7.3.10.ep4","7.3.10.ep5"]}],"products":[{"vendor":"liferay","product":"dxp"},{"vendor":"liferay","product":"liferay_portal"}],"references":[{"url":"https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120743467","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-29047","tags":["advisory"]},{"url":"http://liferay.com","tags":["web"]},{"url":"https://web.archive.org/web/20210524180455/https://portal.liferay.dev/learn/security/known-vulnerabilities/-/asset_publisher/HbL5mxmVrnXW/content/id/120743467","tags":["web"]},{"url":"https://github.com/advisories/GHSA-9mxg-p873-6793"},{"url":"https://github.com/liferay/liferay-portal","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2021-29047","description":"The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.","status":"published","published":"2021-05-16T15:29:52Z","modified":"2026-07-09T00:13:13.762Z","updated_at":"2026-11-02T14:33:06.658806Z"}],"euvd":[{"id":"EUVD-2021-15693","description":"The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.","status":"published","published":"2021-05-16T15:29:52Z","modified":"2026-07-09T00:13:13Z","updated_at":"2026-11-02T18:20:09.112703Z"}],"ghsa":[{"id":"GHSA-9mxg-p873-6793","title":"Liferay Portal and Liferay DXP Fails to Invalidate CAPTCHA Answers After Use","description":"The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.","status":"published","published":"2022-05-24T19:02:32Z","modified":"2025-05-14T07:43:29Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:38:43.172412Z"}],"nvd":[{"id":"CVE-2021-29047","description":"The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.","status":"published","published":"2021-05-16T16:15:07.297Z","modified":"2026-07-09T01:16:51.907Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:06:53.343329Z"}],"osv":[{"id":"CVE-2021-29047","description":"The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.","status":"published","published":"2021-05-16T16:15:07.297Z","modified":"2026-10-24T10:30:25.889382353Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:44:19.129331Z"},{"id":"GHSA-9mxg-p873-6793","title":"Liferay Portal and Liferay DXP Fails to Invalidate CAPTCHA Answers After Use","description":"The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.","status":"published","published":"2022-05-24T19:02:32Z","modified":"2025-05-14T08:27:08.200508Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T15:46:43.875515Z"}]}}