CVE-2007-2976

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.

Published: 2007-06-01 Last update: 2026-03-23 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2007-2976 is rated Low Risk (37.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.38%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2007-2976

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-18 0.25% 0.38% +0.12%
2 2024-02-26 0.24% 0.25% +0.02%
3 2023-03-07 — 0.24% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2007-2976

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2007-2976

OS Trackers for CVE-2007-2976

vendor priority summary link
alpine — CVE-2007-2976: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2007-2976

Affected software / configurations for CVE-2007-2976

Vendor Product Version Raw CPE
opentext firstclass <= 8.3 cpe:2.3:a:opentext:firstclass:*:*:*:*:*:*:*:*
opentext server_and_internet_services <= 8.0 cpe:2.3:a:opentext:server_and_internet_services:*:*:*:*:*:*:*:*

References for CVE-2007-2976

cvelogic Threat Intelligence