CVE-2009-4090

Exp

Unrestricted file upload vulnerability in ajax/addComment.php in telepark.wiki 2.4.23 and earlier script allows remote attackers to execute arbitrary code by uploading a file with a name containing a NULL byte.

Published: 2009-11-29 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4090 is rated High Exploit Risk (73.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.02%). 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-2009-4090

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-2009-4090

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 2025-03-30 4.73% 3.02% -1.71%
2 2025-03-29 3.02% 4.73% +1.71%
3 2025-03-17 — 3.02% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4090

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P 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:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2009-4090

Affected software / configurations for CVE-2009-4090

Vendor Product Version Raw CPE
telepark telepark.wiki <= 2.4.23 cpe:2.3:a:telepark:telepark.wiki:*:*:*:*:*:*:*:*

References for CVE-2009-4090

cvelogic Threat Intelligence