Is CVE-2009-4520 being actively exploited?

CVE-2009-4520 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-4520?

CVE-2009-4520 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2009-4520

MEDIUM · CVSS 5.0EPSS 1.2%EU EUVD

The CCK Comment Reference module 5.x before 5.x-1.2 and 6.x before 6.x-1.3, a module for Drupal, allows remote attackers to bypass intended access restrictions and read comments by using the autocomplete path.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness (CWE): CWE-264
EPSS score: 1.2% (69th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-4486)
Published: December 31, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-4486 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

drupal / drupal
kristof de jaeger / commentreference
kristof de jaeger / commentreference
kristof de jaeger / commentreference
kristof de jaeger / commentreference
kristof de jaeger / commentreference
kristof de jaeger / commentreference

References

http://drupal.org/node/617380(Patch, Vendor Advisory)
http://secunia.com/advisories/37206(Vendor Advisory)
http://www.securityfocus.com/bid/36863(Patch)
http://www.vupen.com/english/advisories/2009/3084(Patch, Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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