Guestbox gbshow.php cross-site scripting
| guestbox-gbshow-xss (24798) |  Medium Risk |
Description:
Guestbox is vulnerable to cross-site scripting, caused by improper validation of user-supplied input by the gbshow.php script. If magic_quotes_gpc is disabled, a remote attacker could exploit this vulnerability using the homepage field to execute script in a victim's Web browser within the security context of the hosting Web site, allowing the attacker to steal the victim's cookie-based authentication credentials.
*CVSS:
| Base Score: | 4.2 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| 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 Guestbox (0.8 or later), available from the Guestbox Web site. See References.
References:
- Bugtraq Mailing List, Mon Feb 20 2006 - 05:28:34 CST : Guestbox XSS/an admin bypass.
- Guestbox 0.7BETA Web site: Latest News. (This site is in another language.)
- BID-16751: Guestbox HTML Injection Vulnerability
- CVE-2006-0860: Multiple cross-site scripting (XSS) vulnerabilities in Michael Salzer Guestbox 0.6, and other versions before 0.8, allow remote attackers to inject arbitrary web script or HTML via (1) HTML tags that follow a http:// string, which bypasses a regular expression check, and (2) other unspecified attack vectors.
- OSVDB ID: 23375: Guestbox gbshow.php homepage Field XSS
- SA18946: Guestbox Two Vulnerabilities and One Security Issue
- VUPEN/ADV-2006-0675: Guestbox Cross Site Scripting and Information Disclosure Vulnerabilities
Platforms Affected:
- Michael Salzer Guestbox 0.6
Reported:
Feb 20, 2006
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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 IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.