CVE-2009-4528

The Organic Groups (OG) Vocabulary module 6.x before 6.x-1.0 for Drupal allows remote authenticated group members to bypass intended access restrictions, and create, modify, or read a vocabulary, via unspecified vectors.

Published: 2009-12-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2009-4528 is rated Moderate Risk (50.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.34%). 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-2009-4528

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 0.41% 1.34% +0.92%
2 2023-03-07 1.23% 0.41% -0.82%
3 2022-02-04 — 1.23% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2009-4528

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 2.0 MEDIUM
AV:N/AC:L/Au:S/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:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.0 6.4 [email protected]

Weakness enumeration for CVE-2009-4528

Affected software / configurations for CVE-2009-4528

Vendor Product Version Raw CPE
moshe_weitzman og_vocab 6.x-1.0 cpe:2.3:a:moshe_weitzman:og_vocab:6.x-1.0:rc1:*:*:*:*:*:*
moshe_weitzman og_vocab 6.x-1.x cpe:2.3:a:moshe_weitzman:og_vocab:6.x-1.x:dev:*:*:*:*:*:*

References for CVE-2009-4528

cvelogic Threat Intelligence