CVE-2003-1556

Cross-site scripting (XSS) vulnerability in cc_guestbook.pl in CGI City CC GuestBook allows remote attackers to inject arbitrary web script or HTML via the (1) name and (2) homepage_title (webpage title) parameters.

Published: 2003-12-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-1556 is rated Moderate Risk (44.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.62%). EPSS rose +1.37% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

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-2003-1556

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 2026-06-15 0.25% 1.62% +1.37%
2 2025-03-17 0.19% 0.25% +0.06%
3 2023-03-07 — 0.19% —

Full EPSS history (4 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-1556

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-2003-1556

Affected software / configurations for CVE-2003-1556

Vendor Product Version Raw CPE
cgi_city cc_guestbook — cpe:2.3:a:cgi_city:cc_guestbook:*:*:*:*:*:*:*:*

References for CVE-2003-1556

cvelogic Threat Intelligence