Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2009-4527

14
FAUCET Score

CVE-2009-4527 describes a privilege escalation vulnerability in the Shibboleth authentication module for Drupal (versions 5.x before 5.x-3.4 and 6.x before 6.x-3.2). This flaw allows a physically proximate attacker to gain unauthorized privileges by exploiting improperly removed static grants after a user logs out or a session changes, particularly on unattended web browsers. The vulnerability has a CVSS score of 4.6 (AV:L/AC:L/Au:N/C:P/I:P/A:P), indicating low attack complexity and requiring local access, with potential for partial confidentiality, integrity, and availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
5.x-1.xCPE matchmatch criteria
cpe:2.3:a:niif:shib_auth:5.x-1.x:dev:*:*:*:*:*:*
5.x-2.1CPE matchmatch criteria
cpe:2.3:a:niif:shib_auth:5.x-2.1:*:*:*:*:*:*:*
5.x-2.2CPE matchmatch criteria
cpe:2.3:a:niif:shib_auth:5.x-2.2:*:*:*:*:*:*:*
5.x-2.4CPE matchmatch criteria
cpe:2.3:a:niif:shib_auth:5.x-2.4:*:*:*:*:*:*:*
5.x-2.5CPE matchmatch criteria
cpe:2.3:a:niif:shib_auth:5.x-2.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 35th percentile among its peer group of 3,049 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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/604488
PatchVendor Advisory
secunia.com / advisories/37057
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/53779
securityfocus.com / bid/36684
vupen.com / english/advisories/2009/2919
Vendor Advisory