Auth bypass in Drupal

CVE-2010-3091

The OpenID module in Drupal 6.x before 6.18, and the OpenID module 5.x before 5.x-1.4 for Drupal, violates the OpenID 2.0 protocol by not verifying the openid.return_to value, which allows remote attackers to bypass authentication by leveraging an assertion from an OpenID provider.

Vulnerability class: Broken Authentication

EPSS: 0.024 (82.1th percentile) — read the EPSS interpretation.

Affected products

Weakness classification (CWE)

References