CVE-2003-0587

Cross-site scripting (XSS) vulnerability in Infopop Ultimate Bulletin Board (UBB) 6.x allows remote authenticated users to execute arbitrary web script and gain administrative access via the "displayed name" attribute of the "ubber" cookie.

Published: 2003-08-18 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2003-0587 is rated Moderate Risk (42.4/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.55%). 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-2003-0587

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 0.14% 0.55% +0.41%
2 2025-03-30 0.18% 0.14% -0.05%
3 2025-03-29 — 0.18% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2003-0587

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.9 2.0 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 3.4 10.0 [email protected]

Weakness enumeration for CVE-2003-0587

Affected software / configurations for CVE-2003-0587

Vendor Product Version Raw CPE
infopop ultimate_bulletin_board 6 cpe:2.3:a:infopop:ultimate_bulletin_board:6:*:*:*:*:*:*:*

References for CVE-2003-0587

cvelogic Threat Intelligence