{"id":"BIT-joomla-2021-26032","summary":"[20210501] - Core - Adding HTML to the executable block list of MediaHelper::canUpload","details":"An issue was discovered in Joomla! 3.0.0 through 3.9.26. HTML was missing in the executable block list of MediaHelper::canUpload, leading to XSS attack vectors.","aliases":["CVE-2021-26032"],"modified":"2026-09-08T08:47:39.080201297Z","published":"2025-04-03T14:13:12.201Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:joomla:joomla!:*:*:*:*:*:*:*:*"]},"references":[{"type":"ADVISORY","url":"https://developer.joomla.org/security-centre/852-20210501-core-adding-html-to-the-executable-block-list-of-mediahelper-canupload.html"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26032"}],"affected":[{"package":{"name":"joomla","ecosystem":"Bitnami","purl":"pkg:bitnami/joomla"},"ranges":[{"type":"SEMVER","events":[{"introduced":"3.0.0"},{"last_affected":"3.9.26"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/joomla/BIT-joomla-2021-26032.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"}