{"id":"CVE-2018-11326","aliases":["EUVD-2022-3874","GHSA-g3m5-vvj7-xrwv"],"status":"published","title":"Joomla! XSS Vulnerability","description":"An issue was discovered in Joomla! Core before 3.8.8. Inadequate input filtering leads to a multiple XSS vulnerabilities. Additionally, the default filtering settings could potentially allow users of the default Administrator user group to perform a XSS attack.","severity":{"version":"3.0","score":4.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01009,"percentile":0.63316,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2018-05-22T15:00:00Z","modified":"2026-10-24T10:30:29Z","fixes":[{"ecosystem":"Packagist","package":"joomla/joomla-cms","fixed_in":["3.8.8"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"joomla/joomla-cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.8.8"}]}]},{"source":"osv","ecosystem":"Packagist","package":"joomla/joomla-cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0.0"},{"fixed":"3.8.8"}]}]}],"products":[{"vendor":"joomla","product":"joomla\\!"}],"references":[{"url":"http://www.securityfocus.com/bid/104270","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://developer.joomla.org/security-centre/733-20180505-core-xss-vulnerabilities-additional-hadering.html","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory","web"]},{"url":"http://www.securitytracker.com/id/1040966","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-11326","tags":["advisory"]},{"url":"https://web.archive.org/web/20210124173032/http://www.securityfocus.com/bid/104270","tags":["web"]},{"url":"https://web.archive.org/web/20211129145422/http://www.securitytracker.com/id/1040966","tags":["web"]},{"url":"https://github.com/advisories/GHSA-g3m5-vvj7-xrwv"},{"url":"https://github.com/joomla/joomla-cms","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2018-11326","description":"An issue was discovered in Joomla! 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Inadequate input filtering leads to a multiple XSS vulnerabilities. Additionally, the default filtering settings could potentially allow users of the default Administrator user group to perform a XSS attack.","status":"published","published":"2022-05-14T03:16:51Z","modified":"2023-10-06T16:56:19Z","cvss":[{"version":"3.0","score":4.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:37:08.278692Z"}],"nvd":[{"id":"CVE-2018-11326","description":"An issue was discovered in Joomla! Core before 3.8.8. Inadequate input filtering leads to a multiple XSS vulnerabilities. Additionally, the default filtering settings could potentially allow users of the default Administrator user group to perform a XSS attack.","status":"published","published":"2018-05-22T15:29:00.45Z","modified":"2026-06-17T01:35:43.653Z","cvss":[{"version":"3.0","score":4.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":3.5,"vector":"AV:N/AC:M/Au:S/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:04:27.507872Z"}],"osv":[{"id":"CVE-2018-11326","description":"An issue was discovered in Joomla! Core before 3.8.8. Inadequate input filtering leads to a multiple XSS vulnerabilities. Additionally, the default filtering settings could potentially allow users of the default Administrator user group to perform a XSS attack.","status":"published","published":"2018-05-22T15:29:00.45Z","modified":"2026-10-24T10:30:29.891277332Z","cvss":[{"version":"3.0","score":4.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:07.641418Z"},{"id":"GHSA-g3m5-vvj7-xrwv","title":"Joomla! XSS Vulnerability","description":"An issue was discovered in Joomla! Core starting in 3.0.0 and prior to 3.8.8. Inadequate input filtering leads to a multiple XSS vulnerabilities. Additionally, the default filtering settings could potentially allow users of the default Administrator user group to perform a XSS attack.","status":"published","published":"2022-05-14T03:16:51Z","modified":"2023-11-08T03:59:45.833339Z","cvss":[{"version":"3.0","score":4.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:46:47.119724Z"}]}}