Joomulus module for Joomla! tagcloud cross-site scripting

joomulus-tagcloud-xss (55156) The risk level is classified as MediumMedium Risk


The Joomulus module for Joomla! is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by tagcloud_ell.swf, tagcloud_eng.swf, tagcloud_por.swf, tagcloud_rus.swf, and tagcloud_jpn.swf. A remote attacker could exploit this vulnerability using the tagcloud parameter in a specially-crafted URL to execute script in a victim's Web browser within the security context of the hosting Web site, once the URL is clicked. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.


Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
Temporal Score: 4.1
  Exploitability: High
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated


Gain Access


No remedy available as of September 1, 2014.


  • BugTraq Mailing List, Fri Dec 25 2009: Vulnerability in Joomulus for Joomla.
  • Joomla Bear Web site: Joomulus.
  • BID-37479: Joomla! Joomulus Component 'tagcloud.swf' Cross-Site Scripting Vulnerability
  • CVE-2009-4573: Multiple cross-site scripting (XSS) vulnerabilities in the Joomulus (mod_joomulus) module 2.0 for Joomla! allow remote attackers to inject arbitrary web script or HTML via the tagcloud parameter in a tags action to (1) tagcloud_ell.swf, (2) tagcloud_eng.swf, (3) tagcloud_por.swf, (4) tagcloud_rus.swf, and possibly (5) tagcloud_jpn.swf. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.
  • OSVDB ID: 61343: Joomulus Module for Joomla! tagcloud_ell.swf tagcloud Parameter XSS
  • OSVDB ID: 61344: Joomulus Module for Joomla! tagcloud_eng.swf tagcloud Parameter XSS
  • OSVDB ID: 61345: Joomulus Module for Joomla! tagcloud_por.swf tagcloud Parameter XSS
  • OSVDB ID: 61346: Joomulus Module for Joomla! tagcloud_rus.swf tagcloud Parameter XSS
  • SA37994: Joomla! Joomulus Module "tagcloud" Cross-Site Scripting Vulnerability

Platforms Affected:

  • Joomla Bear Joomulus module for Joomla! 2.0
  • Joomla! Joomla!


Dec 25, 2009

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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