Improper Validation of openid.realm Parameter in JanRain PHP OpenID Library

CVE-2016-2049 · MEDIUM Severity

AV:N/AC:M/AU:N/C:P/I:P/A:P

examples/consumer/common.php in JanRain PHP OpenID library (aka php-openid) improperly checks the openid.realm parameter against the SERVER_NAME element in the SERVER superglobal array, which might allow remote attackers to hijack the authentication of arbitrary users via vectors involving a crafted HTTP Host header.

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