CVE-2004-1516

Exp

CRLF injection vulnerability in index.php in phpWebSite 0.9.3-4 allows remote attackers to perform HTTP Response Splitting attacks to modify expected HTML content from the server via the block_username parameter in the user module.

Published: 2004-12-31 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2004-1516 is rated High Exploit Risk (61.3/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.60%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2004-1516

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2004-1516

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 0.68% 1.60% +0.93%
2 2025-03-30 0.76% 0.68% -0.09%
3 2025-03-29 — 0.76% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2004-1516

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:N/I:P/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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2004-1516

OS Trackers for CVE-2004-1516

vendor priority summary link
gentoo low CVE-2004-1516: 1 GLSA(s) (200411-35), 1 atom(s) (www-apps/phpwebsite); latest impact low. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2004-1516

Affected software / configurations for CVE-2004-1516

Vendor Product Version Raw CPE
phpwebsite phpwebsite 0.7.3 cpe:2.3:a:phpwebsite:phpwebsite:0.7.3:*:*:*:*:*:*:*
phpwebsite phpwebsite 0.8.2 cpe:2.3:a:phpwebsite:phpwebsite:0.8.2:*:*:*:*:*:*:*
phpwebsite phpwebsite 0.8.3 cpe:2.3:a:phpwebsite:phpwebsite:0.8.3:*:*:*:*:*:*:*
phpwebsite phpwebsite 0.9.3 cpe:2.3:a:phpwebsite:phpwebsite:0.9.3:*:*:*:*:*:*:*
phpwebsite phpwebsite 0.9.3.1 cpe:2.3:a:phpwebsite:phpwebsite:0.9.3.1:*:*:*:*:*:*:*
phpwebsite phpwebsite 0.9.3.2 cpe:2.3:a:phpwebsite:phpwebsite:0.9.3.2:*:*:*:*:*:*:*
phpwebsite phpwebsite 0.9.3.3 cpe:2.3:a:phpwebsite:phpwebsite:0.9.3.3:*:*:*:*:*:*:*
phpwebsite phpwebsite 0.9.3.4 cpe:2.3:a:phpwebsite:phpwebsite:0.9.3.4:*:*:*:*:*:*:*

References for CVE-2004-1516

cvelogic Threat Intelligence