{"id":"CVE-2026-30894","aliases":["BIT-joomla-2026-30894","EUVD-2026-31872","GHSA-g57j-96qr-jr34"],"status":"published","title":"Joomla! Core - [20260503] - XSS in com_contenthistory","description":"Lack of output escaping leads to a XSS vector in the content history component.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00182,"percentile":0.07844,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-05-26T16:42:58Z","modified":"2026-10-24T10:30:53Z","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":"3.0.0"},{"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/1035-20260503-core-xss-in-com-contenthistory","tags":["vendor-advisory","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-30894","tags":["web"]},{"url":"https://github.com/advisories/GHSA-g57j-96qr-jr34"}],"sources":{"cve":[{"id":"CVE-2026-30894","title":"Joomla! Core - [20260503] - XSS in com_contenthistory","description":"Lack of output escaping leads to a XSS vector in the content history component.","status":"published","published":"2026-05-26T16:42:58.268Z","modified":"2026-06-05T07:28:01.85Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:44:07.200604Z"}],"euvd":[{"id":"EUVD-2026-31872","description":"Lack of output escaping leads to a XSS vector in the content history component.","status":"published","published":"2026-05-26T16:42:58Z","modified":"2026-06-05T07:28:01Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:52.238484Z"}],"ghsa":[{"id":"GHSA-g57j-96qr-jr34","title":"Lack of output escaping leads to a XSS vector in the content history component.","description":"Lack of output escaping leads to a XSS vector in the content history component.","status":"published","published":"2026-05-26T18:31:45Z","modified":"2026-05-27T15:34:08Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/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":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:08:21.006908Z"}],"nvd":[{"id":"CVE-2026-30894","description":"Lack of output escaping leads to a XSS vector in the content history component.","status":"published","published":"2026-05-26T17:16:30.903Z","modified":"2026-07-24T11:10:00.17Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/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":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"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:20.131508Z"}],"osv":[{"id":"CVE-2026-30894","description":"Lack of output escaping leads to a XSS vector in the content history component.","status":"published","published":"2026-05-26T17:16:30.903Z","modified":"2026-10-24T10:30:53.527068889Z","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":"2026-11-02T15:45:00.861953Z"},{"id":"BIT-joomla-2026-30894","title":"Joomla! Core - [20260503] - XSS in com_contenthistory","description":"Lack of output escaping leads to a XSS vector in the content history component.","status":"published","published":"2026-05-28T08:45:55.396Z","modified":"2026-09-08T08:48:02.294780147Z","updated_at":"2026-11-02T15:28:31.782692Z"}]}}