{"id":"CVE-2026-21632","aliases":["BIT-joomla-2026-21632","EUVD-2026-17859","GHSA-w5f8-qggr-8844"],"status":"published","title":"Joomla! Core - [20260304] - XSS vectors in various article title outputs","description":"Lack of output escaping for article titles leads to XSS vectors in various locations.","severity":{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00193,"percentile":0.09055,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-79"],"published":"2026-04-01T09:03:11Z","modified":"2026-10-28T02:31:06Z","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/1030-20260304-core-xss-vectors-in-various-article-title-outputs.html","tags":["vendor-advisory","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21632","tags":["web"]},{"url":"https://github.com/advisories/GHSA-w5f8-qggr-8844"}],"sources":{"cve":[{"id":"CVE-2026-21632","title":"Joomla! Core - [20260304] - XSS vectors in various article title outputs","description":"Lack of output escaping for article titles leads to XSS vectors in various locations.","status":"published","published":"2026-04-01T09:03:11.213Z","modified":"2026-04-02T05:09:54.642Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T13:41:42.05254Z"}],"euvd":[{"id":"EUVD-2026-17859","description":"Lack of output escaping for article titles leads to XSS vectors in various locations.","status":"published","published":"2026-04-01T09:03:11Z","modified":"2026-04-02T05:09:54Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U","level":"medium"}],"updated_at":"2026-11-02T19:25:23.620594Z"}],"ghsa":[{"id":"GHSA-w5f8-qggr-8844","title":"Lack of output escaping for article titles leads to XSS vectors in various locations.","description":"Lack of output escaping for article titles leads to XSS vectors in various locations.","status":"published","published":"2026-04-01T12:31:28Z","modified":"2026-04-09T21:32:32Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/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":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:07:24.354029Z"}],"nvd":[{"id":"CVE-2026-21632","description":"Lack of output escaping for article titles leads to XSS vectors in various locations.","status":"published","published":"2026-04-01T10:16:16.25Z","modified":"2026-10-26T21:10:00.17Z","cvss":[{"version":"4.0","score":5.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/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":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:12:12.73929Z"}],"osv":[{"id":"CVE-2026-21632","description":"Lack of output escaping for article titles leads to XSS vectors in various locations.","status":"published","published":"2026-04-01T10:16:16.25Z","modified":"2026-10-28T02:31:06.137047192Z","cvss":[{"version":"3.1","score":5.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:58.42038Z"},{"id":"BIT-joomla-2026-21632","title":"Joomla! Core - [20260304] - XSS vectors in various article title outputs","description":"Lack of output escaping for article titles leads to XSS vectors in various locations.","status":"published","published":"2026-04-10T08:49:20.111Z","modified":"2026-09-08T08:48:02.403544462Z","updated_at":"2026-11-02T15:28:31.782692Z"}]}}