CVE-2009-4771

The PayPal Website Payments Standard functionality in the Ubercart module 5.x before 5.x-1.9 and 6.x before 6.x-2.1 for Drupal does not properly validate orders, which allows remote attackers to trigger unspecified "duplicate actions" via unknown vectors.

Published: 2010-04-20 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4771 is rated Moderate Risk (43.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.22%). Review affected assets and schedule remediation.

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-2009-4771

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 0.43% 1.22% +0.79%
2 2025-03-30 0.52% 0.43% -0.08%
3 2025-03-29 — 0.52% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4771

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:N/I:P/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:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2009-4771

Affected software / configurations for CVE-2009-4771

Vendor Product Version Raw CPE
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:*:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha1:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha2:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha3:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha4:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha5:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha6:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha6b:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha6c:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha7:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha7b:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha7c:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha7d:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha7e:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:alpha8:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:beta1:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:beta2:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:beta3:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:beta4:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:beta5:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:beta6:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:beta7:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:rc1:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:rc2:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:rc3:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:rc4:*:*:*:*:*:*
ubercart ubercart 5.x-1.0 cpe:2.3:a:ubercart:ubercart:5.x-1.0:rc5:*:*:*:*:*:*
ubercart ubercart 5.x-1.1 cpe:2.3:a:ubercart:ubercart:5.x-1.1:*:*:*:*:*:*:*
ubercart ubercart 5.x-1.2 cpe:2.3:a:ubercart:ubercart:5.x-1.2:*:*:*:*:*:*:*
ubercart ubercart 5.x-1.3 cpe:2.3:a:ubercart:ubercart:5.x-1.3:*:*:*:*:*:*:*
ubercart ubercart 5.x-1.3 cpe:2.3:a:ubercart:ubercart:5.x-1.3:rc1:*:*:*:*:*:*
ubercart ubercart 5.x-1.4 cpe:2.3:a:ubercart:ubercart:5.x-1.4:*:*:*:*:*:*:*
ubercart ubercart 5.x-1.5 cpe:2.3:a:ubercart:ubercart:5.x-1.5:*:*:*:*:*:*:*
ubercart ubercart 5.x-1.6 cpe:2.3:a:ubercart:ubercart:5.x-1.6:*:*:*:*:*:*:*
ubercart ubercart 5.x-1.7 cpe:2.3:a:ubercart:ubercart:5.x-1.7:*:*:*:*:*:*:*
ubercart ubercart 5.x-1.8 cpe:2.3:a:ubercart:ubercart:5.x-1.8:*:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:*:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:beta1:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:beta2:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:beta3:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:beta4:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:beta5:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:beta6:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:dev:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:rc1:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:rc2:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:rc3:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:rc4:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:rc5:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:rc6:*:*:*:*:*:*
ubercart ubercart 6.x-2.0 cpe:2.3:a:ubercart:ubercart:6.x-2.0:rc7:*:*:*:*:*:*

References for CVE-2009-4771

cvelogic Threat Intelligence