CVE-2005-3991

Exp

Multiple cross-site scripting (XSS) vulnerabilities in phpMyChat 0.14.6 allow remote attackers to inject arbitrary web script or HTML via the medium parameter to (1) start_page.css.php and (2) style.css.php; or the From parameter to users_popupL.php.

Published: 2005-12-04 Last update: 2026-04-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-3991 is rated Exploit Available (59.1/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.78%). 4 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-2005-3991

EDB-ID Source Kind Published Link
26696 exploit_db edb 2005-12-01 Exploit-DB ↗
26695 exploit_db edb 2005-12-01 Exploit-DB ↗
26694 exploit_db edb 2005-12-01 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-3991

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 1.25% 1.78% +0.53%
2 2026-03-16 1.40% 1.25% -0.14%
3 2025-10-18 — 1.40% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-3991

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-2005-3991

Affected software / configurations for CVE-2005-3991

Vendor Product Version Raw CPE
phpheaven phpmychat 0.14.6 cpe:2.3:a:phpheaven:phpmychat:0.14.6:*:*:*:*:*:*:*

References for CVE-2005-3991

cvelogic Threat Intelligence