message/ax/AxMessage.java in OpenID4Java before 0.9.6 final, as used in JBoss Enterprise Application Platform 5.1 before 5.1.2, Step2, Kay Framework before 1.0.2, and possibly other products does not verify that Attribute Exchange (AX) information is signed, which allows remote attackers to modify potentially sensitive AX information without detection via a man-in-the-middle (MITM) attack.

The shutdown function in the Zend_Log_Writer_Mail class in Zend Framework (ZF) allows context-dependent attackers to send arbitrary e-mail messages to any recipient address via vectors related to "events not yet mailed."