CVE-2004-0263

PHP 4.3.4 and earlier in Apache 1.x and 2.x (mod_php) can leak global variables between virtual hosts that are handled by the same Apache child process but have different settings, which could allow remote attackers to obtain sensitive information.

Published: 2004-11-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-0263 is rated Moderate Risk (52.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.48%). EPSS rose +1.77% 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-2004-0263

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 1.71% 3.48% +1.77%
2 2026-05-07 1.08% 1.71% +0.63%
3 2025-12-28 — 1.08% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-0263

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2004-0263

Affected software / configurations for CVE-2004-0263

Vendor Product Version Raw CPE
apache http_server 1.0 cpe:2.3:a:apache:http_server:1.0:*:*:*:*:*:*:*
apache http_server 1.0.2 cpe:2.3:a:apache:http_server:1.0.2:*:*:*:*:*:*:*
apache http_server 1.0.3 cpe:2.3:a:apache:http_server:1.0.3:*:*:*:*:*:*:*
apache http_server 1.0.5 cpe:2.3:a:apache:http_server:1.0.5:*:*:*:*:*:*:*
apache http_server 1.1 cpe:2.3:a:apache:http_server:1.1:*:*:*:*:*:*:*
apache http_server 1.1.1 cpe:2.3:a:apache:http_server:1.1.1:*:*:*:*:*:*:*
apache http_server 1.2 cpe:2.3:a:apache:http_server:1.2:*:*:*:*:*:*:*
apache http_server 1.2.5 cpe:2.3:a:apache:http_server:1.2.5:*:*:*:*:*:*:*
apache http_server 1.3 cpe:2.3:a:apache:http_server:1.3:*:*:*:*:*:*:*
apache http_server 1.3.1 cpe:2.3:a:apache:http_server:1.3.1:*:*:*:*:*:*:*
apache http_server 1.3.3 cpe:2.3:a:apache:http_server:1.3.3:*:*:*:*:*:*:*
apache http_server 1.3.4 cpe:2.3:a:apache:http_server:1.3.4:*:*:*:*:*:*:*
apache http_server 1.3.6 cpe:2.3:a:apache:http_server:1.3.6:*:*:*:*:*:*:*
apache http_server 1.3.7 cpe:2.3:a:apache:http_server:1.3.7:*:dev:*:*:*:*:*
apache http_server 1.3.9 cpe:2.3:a:apache:http_server:1.3.9:*:*:*:*:*:*:*
apache http_server 1.3.11 cpe:2.3:a:apache:http_server:1.3.11:*:*:*:*:*:*:*
apache http_server 1.3.12 cpe:2.3:a:apache:http_server:1.3.12:*:*:*:*:*:*:*
apache http_server 1.3.14 cpe:2.3:a:apache:http_server:1.3.14:*:*:*:*:*:*:*
apache http_server 1.3.17 cpe:2.3:a:apache:http_server:1.3.17:*:*:*:*:*:*:*
apache http_server 1.3.18 cpe:2.3:a:apache:http_server:1.3.18:*:*:*:*:*:*:*
apache http_server 1.3.19 cpe:2.3:a:apache:http_server:1.3.19:*:*:*:*:*:*:*
apache http_server 1.3.20 cpe:2.3:a:apache:http_server:1.3.20:*:*:*:*:*:*:*
apache http_server 1.3.22 cpe:2.3:a:apache:http_server:1.3.22:*:*:*:*:*:*:*
apache http_server 1.3.23 cpe:2.3:a:apache:http_server:1.3.23:*:*:*:*:*:*:*
apache http_server 1.3.24 cpe:2.3:a:apache:http_server:1.3.24:*:*:*:*:*:*:*
apache http_server 1.3.25 cpe:2.3:a:apache:http_server:1.3.25:*:*:*:*:*:*:*
apache http_server 1.3.26 cpe:2.3:a:apache:http_server:1.3.26:*:*:*:*:*:*:*
apache http_server 1.3.27 cpe:2.3:a:apache:http_server:1.3.27:*:*:*:*:*:*:*
apache http_server 1.3.28 cpe:2.3:a:apache:http_server:1.3.28:*:*:*:*:*:*:*
apache http_server 1.3.29 cpe:2.3:a:apache:http_server:1.3.29:*:*:*:*:*:*:*
apache http_server 2.0 cpe:2.3:a:apache:http_server:2.0:*:*:*:*:*:*:*
apache http_server 2.0.9 cpe:2.3:a:apache:http_server:2.0.9:*:*:*:*:*:*:*
apache http_server 2.0.28 cpe:2.3:a:apache:http_server:2.0.28:*:*:*:*:*:*:*
apache http_server 2.0.28 cpe:2.3:a:apache:http_server:2.0.28:beta:*:*:*:*:*:*
apache http_server 2.0.32 cpe:2.3:a:apache:http_server:2.0.32:*:*:*:*:*:*:*
apache http_server 2.0.35 cpe:2.3:a:apache:http_server:2.0.35:*:*:*:*:*:*:*
apache http_server 2.0.36 cpe:2.3:a:apache:http_server:2.0.36:*:*:*:*:*:*:*
apache http_server 2.0.37 cpe:2.3:a:apache:http_server:2.0.37:*:*:*:*:*:*:*
apache http_server 2.0.38 cpe:2.3:a:apache:http_server:2.0.38:*:*:*:*:*:*:*
apache http_server 2.0.39 cpe:2.3:a:apache:http_server:2.0.39:*:*:*:*:*:*:*
apache http_server 2.0.40 cpe:2.3:a:apache:http_server:2.0.40:*:*:*:*:*:*:*
apache http_server 2.0.41 cpe:2.3:a:apache:http_server:2.0.41:*:*:*:*:*:*:*
apache http_server 2.0.42 cpe:2.3:a:apache:http_server:2.0.42:*:*:*:*:*:*:*
apache http_server 2.0.43 cpe:2.3:a:apache:http_server:2.0.43:*:*:*:*:*:*:*
apache http_server 2.0.44 cpe:2.3:a:apache:http_server:2.0.44:*:*:*:*:*:*:*
apache http_server 2.0.45 cpe:2.3:a:apache:http_server:2.0.45:*:*:*:*:*:*:*
apache http_server 2.0.46 cpe:2.3:a:apache:http_server:2.0.46:*:*:*:*:*:*:*
apache http_server 2.0.47 cpe:2.3:a:apache:http_server:2.0.47:*:*:*:*:*:*:*
apache http_server 2.0.48 cpe:2.3:a:apache:http_server:2.0.48:*:*:*:*:*:*:*
ibm http_server 1.3.19 cpe:2.3:a:ibm:http_server:1.3.19:*:*:*:*:*:*:*

References for CVE-2004-0263

cvelogic Threat Intelligence