CVE-2009-4406

Exp

Cross-site scripting (XSS) vulnerability in Forms/login1 in American Power Conversion (APC) Switched Rack PDU AP7932 B2, running rpdu 3.3.3 or 3.7.0 on AOS 3.3.4, and possibly other versions, allows remote attackers to inject arbitrary web script or HTML via the login_username parameter.

Published: 2009-12-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4406 is rated Exploit Available (54.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.12%). 2 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-2009-4406

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

Exploit prediction scoring system (EPSS) score for CVE-2009-4406

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 0.38% 1.12% +0.75%
2 2025-09-04 0.34% 0.38% +0.04%
3 2025-03-17 — 0.34% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4406

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-2009-4406

Affected software / configurations for CVE-2009-4406

Vendor Product Version Raw CPE
apc ap7932_b2_firmware 3.3.3 cpe:2.3:a:apc:ap7932_b2_firmware:3.3.3:*:*:*:*:*:*:*
apc ap7932_b2_firmware 3.7.0 cpe:2.3:a:apc:ap7932_b2_firmware:3.7.0:*:*:*:*:*:*:*
apc ap7932_b2 — cpe:2.3:h:apc:ap7932_b2:*:*:*:*:*:*:*:*

References for CVE-2009-4406

cvelogic Threat Intelligence