Elgg index.php cross-site scripting

elgg-index-xss (75756) The risk level is classified as MediumMedium Risk

Description:

Elgg is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the index.php script. A remote attacker could exploit this vulnerability using the view 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.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: Partial
  Availability Impact: None
 
Temporal Score: 3.7
  Exploitability: High
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Upgrade to the latest version of Elgg (1.8.5 or later), available from the Elgg Web site. See References.

References:

  • Elgg Web Site: Elgg - Open Source Social Networking Engine..
  • Elgg Web Site: Elgg 1.8.5 Released.
  • BID-53623: Elgg Cross Site Scripting and Multiple Security Bypass Vulnerabilities
  • CVE-2012-6561: Cross-site scripting (XSS) vulnerability in engine/lib/views.php in Elgg before 1.8.5 allows remote attackers to inject arbitrary web script or HTML via the view parameter to index.php. NOTE: some of these details are obtained from third party information.
  • SA49129: Elgg Cross-Site Scripting and Security Bypass Vulnerabilities

Platforms Affected:

  • Elgg Elgg 1.8.4

Reported:

May 19, 2012

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