{"data":{"id":"CVE-2011-2509","cve_id":"CVE-2011-2509","title":"Joomla! vulnerable to Cross-site Scripting","summary":"Joomla! vulnerable to Cross-site Scripting","severity":"MEDIUM","cvss":{"score":4.3,"version":"2.0","vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","source":"nvd"},"published_at":"2011-07-27T20:55:03.257000Z","modified_at":"2026-06-16T23:31:28.990000Z","withdrawn_at":null,"is_joomla":true,"is_joomla_core":true,"relevance":"certain","product":"Joomla CMS","extension":{"type":null,"name":null},"sources":["github","nvd","osv"],"source_count":3,"url":"https://cve.oyer.fr/cve/CVE-2011-2509","description":"Multiple cross-site scripting (XSS) vulnerabilities in Joomla! before 1.6.4 allow remote attackers to inject arbitrary web script or HTML via (1) the query string to the com_contact component, as demonstrated by the Itemid parameter to index.php; (2) the query string to the com_content component, as demonstrated by the filter_order parameter to index.php; (3) the query string to the com_newsfeeds component, as demonstrated by an arbitrary parameter to index.php; or (4) the option parameter in a reset.request action to index.php; and, when Internet Explorer or Konqueror is used, (5) allow remote attackers to inject arbitrary web script or HTML via the searchword parameter in a search action to index.php in the com_search 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