CVE-2009-4434

Exp

Directory traversal vulnerability in index.php in IDevSpot iSupport 1.8 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the include_file parameter.

Published: 2009-12-28 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4434 is rated High Exploit Risk (63.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.74%). 3 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-2009-4434

EDB-ID Source Kind Published Link
10478 exploit_db edb 2009-12-16 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-4434

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 3.47% 2.74% -0.73%
2 2025-07-18 2.60% 3.47% +0.88%
3 2025-05-21 — 2.60% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4434

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-2009-4434

Affected software / configurations for CVE-2009-4434

Vendor Product Version Raw CPE
idevspot isupport <= 1.8 cpe:2.3:a:idevspot:isupport:*:*:*:*:*:*:*:*
idevspot isupport 1.02 cpe:2.3:a:idevspot:isupport:1.02:*:*:*:*:*:*:*
idevspot isupport 1.06 cpe:2.3:a:idevspot:isupport:1.06:*:*:*:*:*:*:*

References for CVE-2009-4434

cvelogic Threat Intelligence