What’s Vulnerable › Vulnerabilities

CVE-2011-2509

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2011-07-27 · updated 2026-06-16
• Weakness: CWE-79

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 component.

Affected products

• Joomla!: through 1.6.3; 1.5.0, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5 (+39)

References

• http://developer.joomla.org/security/news/352-20110604-xss-vulnerability.html
• http://www.openwall.com/lists/oss-security/2011/06/28/4
• http://www.openwall.com/lists/oss-security/2011/06/29/12
• http://yehg.net/lab/pr0js/advisories/joomla/core/%5Bjoomla_1.6.3%5D_cross_site_scripting%28XSS%29
• http://developer.joomla.org/security/news/352-20110604-xss-vulnerability.html
• http://www.openwall.com/lists/oss-security/2011/06/28/4
• http://www.openwall.com/lists/oss-security/2011/06/29/12
• http://yehg.net/lab/pr0js/advisories/joomla/core/%5Bjoomla_1.6.3%5D_cross_site_scripting%28XSS%29

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