Geeklog new Calendar Event cross-site scripting

geeklog-calendar-event-xss (9309) The risk level is classified as MediumMedium Risk

Description:

Geeklog is vulnerable to cross-site scripting, caused by improper filtering of user-supplied input to the Calendar Event form. A remote attacker could create a new Calendar Event containing malicious script embedded within the $url variable, which would be executed in the administrator's Web browser, once the Calendar Event is submitted for approval. An attacker could use this vulnerability to steal the administrator's cookie-based authentication credentials.


Consequences:

Other

Remedy:

Upgrade to the latest version of Geeklog (1.3.5sr1 or later), available from the Geeklog Web page. See References.

References:

  • BugTraq Mailing List, Mon Jun 10 2002 - 06:41:43 CDT: [ARL02-A13] Multiple Security Issues in GeekLog.
  • Geeklog Web site: Geeklog - The Ultimate Weblog system.
  • BID-4969: Geeklog Multiple Cross Site Scripting Vulnerabilities
  • BID-4974: Geeklog Calendar Event Form Script Injection Vulnerability
  • CVE-2002-0962: Cross-site scripting vulnerabilities in GeekLog 1.3.5 and earlier allow remote attackers to execute arbitrary script via (1) the url variable in the Link field of a calendar event, (2) the topic parameter in index.php, or (3) the title parameter in comment.php.

Platforms Affected:

  • Geeklog Geeklog 1.3.5 rc1

Reported:

Jun 10, 2002

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