CVE-2009-3539

Exp

Multiple cross-site scripting (XSS) vulnerabilities in YourFreeWorld Ultra Classifieds Pro allow remote attackers to inject arbitrary web script or HTML via the (1) cname parameter to subclass.php and the (2) sn parameter to listads.php.

Published: 2009-10-02 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2009-3539 is rated Exploit Available (58/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.52%). Core evidence: 3 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: 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-2009-3539

EDB-ID Source Kind Published Link
34745 exploit_db edb 2009-07-20 Exploit-DB ↗
34744 exploit_db edb 2009-07-20 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2009-3539

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 0.67% 1.52% +0.85%
2 2026-02-17 0.44% 0.67% +0.24%
3 2025-10-17 0.44%

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3539

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-2009-3539

Affected software / configurations for CVE-2009-3539

Vendor Product Version Raw CPE
yourfreeworld ultra_classifieds_pro cpe:2.3:a:yourfreeworld:ultra_classifieds_pro:*:*:*:*:*:*:*:*

References for CVE-2009-3539

cvelogic Threat Intelligence