{"id":"BIT-joomla-2021-26035","summary":"[20210701] - Core - XSS in JForm Rules field","details":"An issue was discovered in Joomla! 3.0.0 through 3.9.27. Inadequate escaping in the rules field of the JForm API leads to a XSS vulnerability.","aliases":["CVE-2021-26035"],"modified":"2026-09-08T08:48:01.416147640Z","published":"2025-04-03T14:13:30.589Z","database_specific":{"cpes":["cpe:2.3:a:joomla:joomla!:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://developer.joomla.org/security-centre/856-20210701-core-xss-in-jform-rules-field.html"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26035"}],"affected":[{"package":{"name":"joomla","ecosystem":"Bitnami","purl":"pkg:bitnami/joomla"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"last_affected":"3.9.27"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/joomla/BIT-joomla-2021-26035.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}],"schema_version":"1.9.0"}