7.5 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
0.016 Low
EPSS
Percentile
87.0%
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
violate the OpenID 2.0 protocol by ensuring only that at least one field is
signed, which allows remote attackers to bypass authentication by
leveraging an assertion from an OpenID provider.