CVE-2014-2684: Zend Framework

Medium severity, CVSS 6.4. EPSS: 1.6% chance of exploitation in the next 30 days.

The GenericConsumer class in the Consumer component in ZendOpenId before 2.0.2 and the Zend_OpenId_Consumer class in Zend Framework 1 before 1.12.4 does not verify that the openid_op_endpoint value identifies the same Identity Provider as the provider used in the association handle, which allows remote attackers to bypass authentication and spoof arbitrary OpenID identities by using a malicious OpenID Provider that generates OpenID tokens with arbitrary identifier and claimed_id values.

Affected products

• Zend Zend Framework: up to and including 1.12.4
• Zend Zendopenid: up to and including 2.0.1

Published 2014-11-16. Last modified 2026-06-17.