{"id":"CVE-2026-48904","aliases":["BIT-joomla-2026-48904","EUVD-2026-31875","GHSA-x9j9-9cc9-85fc"],"status":"published","title":"Joomla! Core - [20260514] - Privilege escalation through com_users webservice endpoints","description":"An improper access check allows privelege escalation through the com_users group editing webservice endpoint.","severity":{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.04576,"percentile":0.91739,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-284"],"published":"2026-05-26T16:43:08Z","modified":"2026-10-24T10:30:52Z","fixes":[{"ecosystem":"Bitnami","package":"joomla","fixed_in":["5.4.6","6.1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Bitnami","package":"joomla","ranges":[{"type":"SEMVER","events":[{"introduced":"4.0.0"},{"fixed":"5.4.6"},{"introduced":"6.0.0"},{"fixed":"6.1.1"}]}]}],"products":[{"vendor":"joomla","product":"joomla\\!"},{"vendor":"joomla! project","product":"joomla! cms"}],"references":[{"url":"https://developer.joomla.org/security-centre/1046-20260514-core-privilege-escalation-through-com-users-webservice-endpoints.html","tags":["vendor-advisory","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48904","tags":["web"]},{"url":"https://github.com/advisories/GHSA-x9j9-9cc9-85fc"}],"sources":{"cve":[{"id":"CVE-2026-48904","title":"Joomla! Core - [20260514] - Privilege escalation through com_users webservice endpoints","description":"An improper access check allows privelege escalation through the com_users group editing webservice endpoint.","status":"published","published":"2026-05-26T16:43:08.503Z","modified":"2026-05-27T09:12:13.794Z","cvss":[{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T13:50:38.739766Z"}],"euvd":[{"id":"EUVD-2026-31875","description":"An improper access check allows privelege escalation through the com_users group editing webservice endpoint.","status":"published","published":"2026-05-26T16:43:08Z","modified":"2026-05-27T09:12:13Z","cvss":[{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T18:21:06.054612Z"}],"ghsa":[{"id":"GHSA-x9j9-9cc9-85fc","title":"An improper access check allows privelege escalation through the com_users group editing...","description":"An improper access check allows privelege escalation through the com_users group editing webservice endpoint.","status":"published","published":"2026-05-26T18:31:47Z","modified":"2026-05-26T21:31:58Z","cvss":[{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/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":"high"},{"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-284"],"updated_at":"2026-11-02T15:08:18.762226Z"}],"nvd":[{"id":"CVE-2026-48904","description":"An improper access check allows privelege escalation through the com_users group editing webservice endpoint.","status":"published","published":"2026-05-26T17:16:55.203Z","modified":"2026-07-24T11:10:00.17Z","cvss":[{"version":"4.0","score":8.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/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":"high","assessor":"secondary"},{"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"}],"cwes":["CWE-284"],"updated_at":"2026-11-02T14:12:20.511562Z"}],"osv":[{"id":"CVE-2026-48904","description":"An improper access check allows privelege escalation through the com_users group editing webservice endpoint.","status":"published","published":"2026-05-26T17:16:55.203Z","modified":"2026-10-24T10:30:52.205984768Z","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":"2026-11-02T15:45:07.060148Z"},{"id":"BIT-joomla-2026-48904","title":"Joomla! Core - [20260514] - Privilege escalation through com_users webservice endpoints","description":"An improper access check allows privelege escalation through the com_users group editing webservice endpoint.","status":"published","published":"2026-05-27T08:47:46.901Z","modified":"2026-09-10T16:01:40.506324334Z","updated_at":"2026-11-02T15:28:31.782692Z"}]}}