{"id":"CVE-2026-90906","title":"Joomla! Core - [20260901] - XSS in HTMLHelper::link method in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to XSS vulnerabilities in the link method of the HTML Helper.","summary":"Joomla! Core - [20260901] - XSS in HTMLHelper::link method in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to XSS vulnerabilities in the link method of the HTML Helper.","severity":"medium","cvss":5.9,"cvssVector":"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","cwe":["CWE-79"],"vendor":"Joomla! Project","product":"Joomla! CMS","affected":["joomla_cms 1.5.0-5.4.8","joomla_cms 6.0.0-6.1.3"],"published":"2026-09-29","updated":"2026-09-29","sourceUpdated":"2026-09-29T17:17:12.920","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90906","references":[{"url":"https://developer.joomla.org/security-centre/1081-20260901-core-xss-in-htmlhelper-link-method.html","label":"security@joomla.org"},{"url":"https://www.joomla.org/","label":"security@joomla.org"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-09-29T17:41:02.207Z","slug":"CVE-2026-90906","body":"## Overview\n\nJoomla! Core - [20260901] - XSS in HTMLHelper::link method in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - Lack of escaping leads to XSS vulnerabilities in the link method of the HTML Helper.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":32,"depthScoreParts":{"impact":32.5,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}