{"id":"CVE-2026-21629","aliases":["BIT-joomla-2026-21629","EUVD-2026-17853","GHSA-cvwg-67gg-j4gg"],"status":"published","title":"Joomla! Core - [20260301] - ACL hardening in com_ajax","description":"The ajax component was excluded from the default logged-in-user check in the administrative area. This behavior was potentially unexpected by 3rd party developers.","severity":{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00259,"percentile":0.17715,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-284"],"published":"2026-04-01T09:03:37Z","modified":"2026-10-28T02:30:35Z","fixes":[{"ecosystem":"Bitnami","package":"joomla","fixed_in":["5.4.4","6.0.4"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"joomla","ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"fixed":"5.4.4"},{"introduced":"6.0.0"},{"fixed":"6.0.4"}]}]}],"products":[{"vendor":"joomla","product":"joomla\\!"},{"vendor":"joomla! project","product":"joomla! cms"}],"references":[{"url":"https://developer.joomla.org/security-centre/1027-20260301-core-acl-hardening-in-com-ajax.html","tags":["vendor-advisory","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21629","tags":["web"]},{"url":"https://github.com/advisories/GHSA-cvwg-67gg-j4gg"}],"sources":{"cve":[{"id":"CVE-2026-21629","title":"Joomla! 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This behavior was potentially unexpected by 3rd party developers.","status":"published","published":"2026-04-01T12:31:27Z","modified":"2026-04-09T21:31:25Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T15:07:23.752851Z"}],"nvd":[{"id":"CVE-2026-21629","description":"The ajax component was excluded from the default logged-in-user check in the administrative area. This behavior was potentially unexpected by 3rd party developers.","status":"published","published":"2026-04-01T10:16:15.79Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"4.0","score":6.3,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high","assessor":"primary"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:12:12.73929Z"}],"osv":[{"id":"CVE-2026-21629","description":"The ajax component was excluded from the default logged-in-user check in the administrative area. This behavior was potentially unexpected by 3rd party developers.","status":"published","published":"2026-04-01T10:16:15.79Z","modified":"2026-10-28T02:30:35.384102043Z","cvss":[{"version":"3.1","score":7.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","level":"high"}],"updated_at":"2026-11-02T15:44:58.42038Z"},{"id":"BIT-joomla-2026-21629","title":"Joomla! Core - [20260301] - ACL hardening in com_ajax","description":"The ajax component was excluded from the default logged-in-user check in the administrative area. This behavior was potentially unexpected by 3rd party developers.","status":"published","published":"2026-04-10T08:49:13.196Z","modified":"2026-09-10T16:01:40.358575829Z","updated_at":"2026-11-02T15:28:31.782692Z"}]}}