CVE-2011-2509: n/a vulnerability

CVE-2011-2509: Multiple cross-site scripting (XSS) vulnerabilities in Joomla!

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.

UnknownCVSS not scoredNot KEV-listedUpdatedSep 16, 2024, 20:31 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2011-2509 is a set of cross-site scripting flaws in Joomla versions before 1.6.4. An attacker could craft links that inject script or HTML into vulnerable Joomla pages. The main business concern is user/session compromise or malicious content shown through a trusted site. Exposure is most likely on legacy Joomla 1.6.x sites, especially instances at 1.6.3 or older. The supplied affected CPE data is incomplete, so confirm exposure by product version and the Joomla advisory rather than relying on scanner metadata alone. Address this when legacy Joomla is still present, especially on public sites. It is not flagged as actively exploited in the supplied sources, but the age and public detail make unsupported deployments a clear avoidable risk. Mitigation focus: Upgrade affected Joomla instances to 1.6.4 or a later supported release.; Review the Joomla security advisory for vendor-specific remediation guidance.; Retire or isolate unsupported Joomla 1.6.x deployments..

Prepared: Jun 27, 2026, 18:09 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 27, 2011, 20:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

CVSS and timeline data

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Source materials

CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

CWE details

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