CVE-2007-2976: Opentext Firstclass

Medium severity, CVSS 4.3. EPSS: 1% chance of exploitation in the next 30 days.

Centrinity FirstClass 8.3 and earlier, and Server and Internet Services 8.0 and earlier, do not properly handle a URL with a null ("%00") character, which allows remote attackers to conduct cross-site scripting (XSS) attacks. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Affected products

• Opentext Firstclass: up to and including 8.3
• Opentext Server And Internet Services: up to and including 8.0

Published 2007-06-01. Last modified 2026-06-16.