CVE-2009-3540

Cross-site scripting (XSS) vulnerability in listads.php in YourFreeWorld Ultra Classifieds Pro allows remote attackers to inject arbitrary web script or HTML via the cn parameter. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Published: 2009-10-02 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-3540 is rated Low Risk (36.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.84%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2009-3540

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 0.25% 0.84% +0.60%
2 2025-03-30 0.40% 0.25% -0.15%
3 2025-03-29 — 0.40% —

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-3540

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-2009-3540

Affected software / configurations for CVE-2009-3540

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

References for CVE-2009-3540

cvelogic Threat Intelligence