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CVE-2009-4528

19
FAUCET Score

CVE-2009-4528 describes an access restriction bypass vulnerability in the Organic Groups (OG) Vocabulary module 6.x before 6.x-1.0 for Drupal. This flaw allows remote authenticated group members to create, modify, or read vocabularies without proper authorization. With a CVSS score of 6.5 (medium severity), it can be exploited over the network with low attack complexity by a single authenticated user, potentially leading to partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
6.x-1.0CPE matchmatch criteria
cpe:2.3:a:moshe_weitzman:og_vocab:6.x-1.0:rc1:*:*:*:*:*:*
6.x-1.xCPE matchmatch criteria
cpe:2.3:a:moshe_weitzman:og_vocab:6.x-1.x:dev:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.5MEDIUM

AV:N/AC:L/Au:S/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Exploitability Score
8.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.34%
Probability of exploitation in next 30 days
EPSS Percentile
68.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0134 is in the 82nd percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

drupal.org / node/604354
Patch
drupal.org / node/604514
PatchVendor Advisory
osvdb.org / 58947
secunia.com / advisories/37060
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/53780
securityfocus.com / bid/36685
vupen.com / english/advisories/2009/2920
Vendor Advisory