{"id":"CVE-2021-23129","aliases":["BIT-joomla-2021-23129","EUVD-2021-10247","GHSA-5qp6-q86g-pjq8"],"status":"published","title":"[20210303] - Core - XSS within alert messages showed to users","description":"An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to users that could lead to xss issues.","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":"2026-11-09","score":0.00804,"percentile":0.57016,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2021-03-04T17:37:14Z","modified":"2026-10-24T10:30:42Z","fixes":[{"ecosystem":"Bitnami","package":"joomla","fixed_in":["3.9.25"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"joomla","ranges":[{"type":"SEMVER","events":[{"introduced":"2.5.0"},{"fixed":"3.9.25"}]}]}],"products":[{"vendor":"joomla","product":"joomla\\!"},{"vendor":"joomla! project","product":"joomla! cms"}],"references":[{"url":"https://developer.joomla.org/security-centre/843-20210303-core-xss-within-alert-messages-showed-to-users.html","tags":["x_refsource_MISC","vendor-advisory","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23129","tags":["web"]},{"url":"https://github.com/advisories/GHSA-5qp6-q86g-pjq8"}],"sources":{"cve":[{"id":"CVE-2021-23129","title":"[20210303] - Core - XSS within alert messages showed to users","description":"An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to users that could lead to xss issues.","status":"published","published":"2021-03-04T17:37:14.594Z","modified":"2026-02-25T05:05:19.501Z","updated_at":"2026-11-02T14:33:00.819444Z"}],"euvd":[{"id":"EUVD-2021-10247","description":"An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to users that could lead to xss issues.","status":"published","published":"2021-03-04T17:37:14Z","modified":"2026-02-25T05:05:19Z","updated_at":"2026-11-02T19:48:29.551855Z"}],"ghsa":[{"id":"GHSA-5qp6-q86g-pjq8","title":"An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to...","description":"An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to users that could lead to xss issues.","status":"published","published":"2022-05-24T17:43:39Z","modified":"2023-01-29T05:05:55Z","cwes":["CWE-79"],"updated_at":"2026-11-02T14:45:54.702484Z"}],"nvd":[{"id":"CVE-2021-23129","description":"An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to users that could lead to xss issues.","status":"published","published":"2021-03-04T18:15:13.44Z","modified":"2026-06-17T03:38:19.023Z","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":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:06:50.399901Z"}],"osv":[{"id":"CVE-2021-23129","description":"An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to users that could lead to xss issues.","status":"published","published":"2021-03-04T18:15:13.44Z","modified":"2026-10-24T10:30:42.030888637Z","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":"2026-11-02T15:44:18.367807Z"},{"id":"BIT-joomla-2021-23129","title":"[20210303] - Core - XSS within alert messages showed to users","description":"An issue was discovered in Joomla! 2.5.0 through 3.9.24. Missing filtering of messages showed to users that could lead to xss issues.","status":"published","published":"2025-04-03T14:12:29.004Z","modified":"2026-09-08T08:48:01.695269638Z","updated_at":"2026-11-02T15:28:31.782692Z"}]}}