CVE-2009-3657: Tim Nelson Shared Sign-On

Medium severity, CVSS 5.8. EPSS: 1.1% chance of exploitation in the next 30 days.

Session fixation vulnerability in Shared Sign-On 5.x and 6.x, a module for Drupal, allows remote attackers to hijack web sessions via unspecified vectors.

Affected products

• Tim Nelson Shared Sign-On: version 5.x only; version 6.x only

Published 2009-10-09. Last modified 2026-06-16.